問題文全文(内容文)：
Let's enjoy oriental mathematics for just a little while.
You will discover a cute world from mathematics.
Everyone in the world should love and be good at mathematics.

We are introducing the entrance exam questions for Japanese high schools.
It's an important issue for you to understand the basics of mathematics.
Would you like to solve this math problem and check out our commentary?

問題文全文(内容文)：
次の条件を満たす1次関数を求めよ。 直線y=3x+3に平行、x=5のときy=7

問題文全文(内容文)：
動画内の図の$\triangle ABO$の面積を求めよ

問題文全文(内容文)：
$x,y$についての連立方程式
$\begin{eqnarray}
\left\{
\begin{array}{l}
2ax-7y=236 \\
x+2y=\dfrac{a}{7}
\end{array}
\right.
\end{eqnarray}$
の解が$x=3,y=b$である.
このとき,定数$a,b$の値を求めなさい.

東京学芸大高校過去問