\documentclass[12pt,b4paper,twocolumn,fleqn,papersize]{jsarticle}
\usepackage{amsmath,amssymb}
\usepackage{atbegshi}
\AtBeginShipoutFirst{\special{pdf:tounicode 90ms-RKSJ-UCS2}}
\usepackage[dvipdfm]{color}
\usepackage[dvipdfm,bookmarks=true,bookmarksnumbered=true,%
             bookmarkstype=toc,pdftitle={�A��������},pdfsubject={���w2�N},pdfauthor={���V�Ώ�}]{hyperref}
\usepackage[dvips]{graphicx}
\usepackage[dvipdfm]{hyperref}
\usepackage{float}
\usepackage{otf}

\setlength{\oddsidemargin}{-10.4truemm}
\setlength{\topmargin}{-10.4truemm}

\setlength{\headheight}{0mm}
\setlength{\headsep}{0mm}

\setlength{\textwidth}{58zw}
\setlength{\textheight}{48\baselineskip}
\addtolength{\textheight}{\topskip}

\def\labelenumi{\bf\theenumi.}
\def\theenumii{\arabic{enumii}}

\setlength{\mathindent}{0pt}

\setlength{\columnseprule}{0.4pt}
\setlength{\columnsep}{2zw}
\def\labelenumi{\bf\theenumi.}
\def\theenumii{\arabic{enumii}}

\pagestyle{empty}
\def\LINES{\hspace{6cm}\underline{\hspace{3cm}}}

\def\LINE{\par �@�@�@�@�@�@�@�@�@�@\underline{\hspace{3cm}}}
\def\LINEM{\hspace{45mm}\underline{\hspace{3cm}}}
\def\LINEL{\vfill
    �@�@�@�@�@�@�@�@�@\underline{\hspace{5cm}}}
\def\LINEK#1{\vfill
\begin{flushright}
\begin{tabular}{@{}c@{}}
\hspace{35mm} \\[-12pt]
{\color{white}{$#1$}} \\
%   \\
\hline
\end{tabular}
\end{flushright}}

\def\LINEA#1{\vfill
\begin{flushright}
\begin{tabular}{@{}c@{}}
\hspace{35mm} \\[-12pt]
{\color{white}{#1}} \\
%   \\
\hline
\end{tabular}
\end{flushright}}

\begin{document}
\twocolumn[%
  \begin{center}
    \Large\bf $2$�N~�A��������
  \end{center}
  \begin{flushright}
    \underline{\hspace{1cm}}�N\underline{\hspace{1cm}}�g\underline{\hspace{1cm}}��
    \hspace{1zw}����\underline{\hspace{5cm}}
  \end{flushright}
  \vspace{5mm}]

\begin{enumerate}
\item �ȉ��̕��͕������������Ƃ��Ɏg�p���铙���̐����ɂ��Ă̕��ł���B
\fbox{~~~$\mathstrut$~~~}~�ɂ��Ă͂܂鎮�܂��͋L���������Ȃ����B

\hspace{-10mm}
\begin{tabular}{@{}c@{}p{26zw}@{}}
\,\ajMaru{1}\, & �����̗��ӂɓ������⎮$m$�������Ă��C\!�����͐��藧�B \\[-14pt]
\multicolumn{2}{@{}c@{}}{$A=B$�Ȃ�΁C$A+m=B+m$} \\
\ajMaru{2} & �����̗��ӂɓ������⎮$m$���Ђ��Ă��C\!�����͐��藧�B \\[-14pt]
\multicolumn{2}{@{}c@{}}{$A=B$�Ȃ�΁C\fbox{~~\ajMaru{1}~~}} \\
\ajMaru{3} & �����̗��ӂɓ�����$m$�������Ă��C�����͐��藧�B \\
\multicolumn{2}{@{}c@{}}{$A=B$�Ȃ�΁C$Am=Bm$} \\
\ajMaru{4} & �����̗��ӂɓ�����$m$(~\fbox{~~\ajMaru{2}~~}~)�ł���Ă��C�����͐��藧�B \\[-14pt]
\multicolumn{2}{@{}c@{}}{$A=B$�Ȃ�΁C$\dfrac{\,A\,}{m}=\dfrac{\,B\,}{m}$} \\
\ajMaru{5} & �����ǂ����̗��ӂ������Ă��C�����͐��藧�B \\
\multicolumn{2}{@{}c@{}}{$A=B,\,M=N$�Ȃ�΁C\fbox{~~\ajMaru{3}~~}} \\
\ajMaru{6} & �����ǂ����̗��ӂ��Ђ��Ă��C�����͐��藧�B \\
\multicolumn{2}{@{}c@{}}{$A=B,\,M=N$�Ȃ�΁C$A-M=B-N$} \\
\end{tabular}

\begin{tabular}{|@{\vrule width 0.3pt}c@{}|c|@{\vrule width 0.3pt}}
\noalign{\hrule height 0.3pt}\hline
 & \hspace{70mm} \\[-8pt]
$\>$\ajMaru{1}$\>$ & {\color{white}{$A-m=B-m$}} \\[-8pt]
 &  \\
\hline
 & \hspace{70mm} \\[-8pt]
$\>$\ajMaru{2}$\>$ & {\color{white}{$m=\hspace{-9.5pt}{\scriptsize \backslash}~0$}} \\[-8pt]
 &  \\
\hline
 & \hspace{70mm} \\[-8pt]
$\>$\ajMaru{3}$\>$ & {\color{white}{$A+M=B+N$}} \\[-8pt]
 &  \\
\noalign{\hrule height 0.3pt}\hline
\end{tabular}

%$m=\hspace{-9.5pt}{\scriptsize \backslash}~0$

\item $x,\,y$��$10$�ȉ��̎��R���̂Ƃ��C$2$��$1$��������$\>2x+y=8\>$�̉������ׂċ��߂Ȃ����B

\vspace{-5mm}
\LINEK{\left\{
\begin{array}{@{\,}ll}
  x=1 \\
  y=6
\end{array}
\right. 
\left\{
\begin{array}{@{\,}ll}
  x=2 \\
  y=4
\end{array}
\right. 
\left\{
\begin{array}{@{\,}ll}
  x=3 \\
  y=2
\end{array}
\right. 
}

\vspace{3mm}
\item �A��������

\vspace{-7mm}
\hspace{15mm}
$\left\{
\begin{array}{@{\,}ll}
  2x+y=9 \\
  x-y=3
\end{array}
\right. $
\hspace{-3mm}�̉���\ajMaruKata{1}�`\ajMaruKata{3}����I�ыL���œ����Ȃ����B

\vspace{-4mm}
\hspace{10mm}
\ajMaruKata{1}$\left\{
\begin{array}{@{\,}ll}
  x=5 \\
  y=2
\end{array}
\right. $
\ajMaruKata{2}$\left\{
\begin{array}{@{\,}ll}
  x=2 \\
  y=5
\end{array}
\right. $
\ajMaruKata{3}$\left\{
\begin{array}{@{\,}ll}
  x=4 \\
  y=1
\end{array}
\right. $

\vfill
\LINEA{\ajMaruKata{3}}

\item ���̘A���������������@�ŉ����Ȃ����B

\vspace{-8mm}
\[ \left\{
\begin{array}{@{\,}ll}
  5x+y=12 \\
  3x+y=6
\end{array}
\right. \]

\vspace{-2mm}
�y���ߕ��z

\vspace{-5mm}
\hspace{15mm}
{\color{white}{\begin{tabular}{@{}c@{}c@{}c@{}c@{}c@{}c@{}}
& $~5x$ & $+$ & $y$ & $=$ & $12$ \\
$-$)& $~3x$ & $+$ & $y$ & $=$ & $6$ \\[-2pt]
\hline
& $~2x$ & & & $=$ & $6$ \\
\end{tabular}}}

\vspace{-15mm}
\LINEK{\left\{
\begin{array}{@{\,}ll}
  x=3 \\
  y=-3
\end{array}
\right. }

\item ���̘A�������������@�ŉ����Ȃ����B

\vspace{-8mm}
\[ \left\{
\begin{array}{@{\,}ll}
  y=x-3 \\
  3x-2y=7
\end{array}
\right. \]

\vspace{-2mm}
�y���ߕ��z

{\color{white}{$3x-2(x-3)=7$}}

\vspace{-10mm}
\LINEK{\left\{
\begin{array}{@{\,}ll}
  x=1 \\
  y=-2
\end{array}
\right. }

\newpage

\item ���̘A���������������Ȃ����B
\begin{enumerate}

\item $\left\{
\begin{array}{@{\,}ll}
  3x+y=17 \\
  x-y=3
\end{array}
\right. $

\vspace{1mm}
\hspace{-5mm}
�y�v�Z�z
\vfill
\vfill
\LINEK{\left\{
\begin{array}{@{\,}ll}
  x=5 \\
  y=2
\end{array}
\right. }

\item $\left\{
\begin{array}{@{\,}ll}
  x-2y=3 \\
  5x-6y=7
\end{array}
\right. $

\vspace{1mm}
\hspace{-5mm}
�y�v�Z�z
\vfill
\vfill
\LINEK{\left\{
\begin{array}{@{\,}ll}
  x=-1 \\
  y=-2
\end{array}
\right. }

\item $\left\{
\begin{array}{@{\,}ll}
  5x-7y=-16 \\
  -4x-3y=30
\end{array}
\right. $

\vspace{1mm}
\hspace{-5mm}
�y�v�Z�z
\vfill
\vfill
\LINEK{\left\{
\begin{array}{@{\,}ll}
  x=-6 \\
  y=-2
\end{array}
\right. }

\item $\left\{
\begin{array}{@{\,}ll}
  9x-2y=-1 \\
  y=3x+1
\end{array}
\right. $

\vspace{1mm}
\hspace{-5mm}
�y�v�Z�z
\vfill
\vfill
\LINEK{\left\{
\begin{array}{@{\,}ll}
  x=\dfrac{1}{\,3\,} \\
  y=2
\end{array}
\right. }

\item $\left\{
\begin{array}{@{\,}ll}
  0.7x-0.5y=0.2x \\
  0.15x-0.25y=0.4
\end{array}
\right. $

\vspace{1mm}
\hspace{-5mm}
�y�v�Z�z
\vfill
\vfill
\LINEK{\left\{
\begin{array}{@{\,}ll}
  x=-4 \\
  y=-4
\end{array}
\right. }

\item $\left\{
\begin{array}{@{\,}ll}
  3(2x+1)+5y=-5 \\
  -7x-4(y+3)=-10
\end{array}
\right. $

\vspace{1mm}
\hspace{-5mm}
�y�v�Z�z
\vfill
\vfill
\LINEK{\left\{
\begin{array}{@{\,}ll}
  x=2 \\
  y=-4
\end{array}
\right. }

\begin{flushright}
(���ւÂ�)
\end{flushright}

\newpage

\item $2x-y=3x+y=-10$

\vspace{1mm}
\hspace{-5mm}
�y�v�Z�z
\vfill
\vfill
\LINEK{\left\{
\begin{array}{@{\,}ll}
  x=-4 \\
  y=2
\end{array}
\right. }

\item $\left\{
 \begin{array}{@{\,}ll} 
 x+4(y+1)=-1 \\[6pt]
 \dfrac{\,x\,}{3}-\dfrac{\,y-1\,}{6}=\dfrac{\,3\,}{2}
 \end{array}
 \right. $

\vspace{1mm}
\hspace{-5mm}
�y�v�Z�z
\vfill
\vfill
\LINEK{\left\{
\begin{array}{@{\,}ll}
  x=3 \\
  y=-2
\end{array}
\right. }

\end{enumerate}

\item �A�������� $\left\{
\begin{array}{@{\,}ll}
  ax+2by=2 \\
  bx+ay=3
\end{array}
\right. $
�̉���$x=5,\,y=-3$�ł���Ƃ��C$a,\,b$�̒l�����߂Ȃ����B

\vspace{1mm}
\hspace{-5mm}
�y�v�Z�z{\color{white}{$x$��$y$���������}}

{\color{white}{$\left\{
\begin{array}{@{\,}ll}
  5a-6b=2 \\
  -3a+5b=3
\end{array}
\right.$������}}

\vfill
\LINEK{\left\{
\begin{array}{@{\,}ll}
  a=4 \\
  b=3
\end{array}
\right. }

\item �o��$5$�{�ƃ���$2$�{�̉ԑ���$1070$�~�C�o��$8$�{�ƃ���$3$�{�ł�$1670$�~�ł��B�o��$1$�{�C����$1$�{�̒l�i��A����������\fbox{�@�@}�ɂ����Ă��ꂼ�ꋁ�߂Ȃ����B
�K�����𕶎��ɂ����̂��킩��悤�ɂ��Ȃ����B

{\color{white}{�o��$1$�{$x$�~�C����$1$�{$y$�~�Ƃ���B}}

\special{pn 13}%
\parbox{2.929in}{
\setlength{\unitlength}{0.001in}
\begin{picture}(2929, 599)(0, -599)
\special{pa 0 0}%
\special{pa 0 700}%
\special{pa 3200 700}%
\special{pa 3200 0}%
\special{pa 0 0}%
\special{fp}%
\end{picture}
}

\vspace{-12mm}
{\color{white}{$\left\{
\begin{array}{@{\,}ll}
  5x+2y=1070 \\
  8x+3y=1670
\end{array}
\right.$}}

\vspace{4mm}
\hspace{-5mm}
�y�v�Z�z

{\color{white}{$\left\{
\begin{array}{@{\,}ll}
  16x+6y=3340 \\
  15x+6y=3210
\end{array}
\right.$}}
\vfill
\vfill
\LINEA{
\begin{tabular}{@{}c@{}}
�o��~$130$~�~ \\
����~$210$~�~ \\
\end{tabular}
}

\newpage

\item A�����瓻��������B���܂ŉ������܂����B
�s�����A������͎���$2$\ajLig{km}�C
����͎���$6$\ajLig{km}�ŕ����čs������C�s����$3$���ԁC�A���$3$����$40$��������܂����B
A������B���܂œ��̂�͉�\ajLig{km}�ł����B
�A����������\fbox{�@�@}�ɂ����ċ��߂Ȃ����B
�K�����𕶎��ɂ����̂��킩��悤�ɂ��Ȃ����B

{\color{white}{A�`����$x$\ajLig{km}�C���`B��$y$\ajLig{km}�Ƃ���B}}

\parbox{2.929in}{
\setlength{\unitlength}{0.001in}
\begin{picture}(2929, 599)(0, -599)
\special{pa 0 0}%
\special{pa 0 599}%
\special{pa 3200 599}%
\special{pa 3200 0}%
\special{pa 0 0}%
\special{fp}%
\end{picture}
}

\vspace{-15mm}
{\color{white}{$\left\{
\begin{array}{@{\,}ll}
  \dfrac{\,x\,}{2}+\dfrac{\,y\,}{6}=3 \\
  \dfrac{\,x\,}{6}+\dfrac{\,y\,}{2}=3+\dfrac{\,40\,}{60} \\
\end{array}
\right.$}}

\vspace{2mm}
\hspace{-5mm}
�y�v�Z�z
\vfill
\LINEA{$10$~~\ajLig{km}}

\item ����w�Z�̑S�Z���k��$250$�l�ł���B�j�q���k��$40$\%�Ə��q���k��$30$\%�͎��]�Ԓʊw��������Ă���B
���]�Ԓʊw��������Ă��鐶�k�͋�����Ă��Ȃ����k���74�l���Ȃ��B���̊w�Z�̒j�q���k�A���q���k�̐l����A����������\fbox{�@�@}�ɂ����ċ��߂Ȃ����B
�K�����𕶎��ɂ����̂��킩��悤�ɂ��Ȃ����B

{\color{white}{�j�q��$x$�l�C���q��$y$�l�Ƃ���B}}

\parbox{2.929in}{
\setlength{\unitlength}{0.001in}
\begin{picture}(2929, 599)(0, -599)
\special{pa 0 0}%
\special{pa 0 599}%
\special{pa 3200 599}%
\special{pa 3200 0}%
\special{pa 0 0}%
\special{fp}%
\end{picture}
}

\vspace{-15mm}
{\color{white}{$\left\{
\begin{array}{@{\,}ll}
  x+y=250 \\
  \dfrac{40}{\,100\,}x+\dfrac{30}{\,100\,}y+74=\dfrac{60}{\,100\,}x+\dfrac{70}{\,100\,}y \\
\end{array}
\right.$}}

\vspace{3mm}
\hspace{-5mm}
�y�v�Z�z
\vfill
\LINEA{
\begin{tabular}{@{}c@{}}
�j�q~$130$~�l \\
���q~$120$~�l \\
\end{tabular}
}

\end{enumerate}

\end{document}
