問題文全文(内容文):
$\begin{eqnarray}
\left\{
\begin{array}{l}
5x+2y=-9 \\
-2x+9y=-16
\end{array}
\right.
\end{eqnarray}$
$\begin{eqnarray}
\left\{
\begin{array}{l}
5x+2y=-9 \\
-2x+9y=-16
\end{array}
\right.
\end{eqnarray}$
単元:
#数学(中学生)#中2数学#連立方程式
指導講師:
【楽しい授業動画】あきとんとん
問題文全文(内容文):
$\begin{eqnarray}
\left\{
\begin{array}{l}
5x+2y=-9 \\
-2x+9y=-16
\end{array}
\right.
\end{eqnarray}$
$\begin{eqnarray}
\left\{
\begin{array}{l}
5x+2y=-9 \\
-2x+9y=-16
\end{array}
\right.
\end{eqnarray}$
投稿日:2024.05.29