Задание
Составьте систему линейных уравнений с переменными \(\displaystyle x\) и \(\displaystyle y{\small,}\) решением которой служит пара \(\displaystyle x=7{\small,}\) \(\displaystyle y=3{\small.}\)
\(\displaystyle \begin{aligned}\begin{cases}\\\\\\\end{cases}\\\end{aligned} \) | [ ]\(\displaystyle x-\)[ ]\(\displaystyle y=\)[ ]\(\displaystyle {\small,}\) [ ]\(\displaystyle x-\)[ ]\(\displaystyle y=\)[ ]\(\displaystyle {\small.}\) |