Задание
Дана система линейных уравнений:
\(\displaystyle \left\{ \begin{aligned} 5x+19y=&17{\small , }\\ {\small \frac{1}{4}}x-6y=&{\small \frac{3}{4} }{\small . } \end{aligned} \right. \)
Умножьте второе уравнение на \(\displaystyle 4{\small : }\)
\(\displaystyle \left\{ \vphantom{\begin{aligned} 1\\[5px] 1 \end{aligned}} \right. \) |
\(\displaystyle 5x+19y=17{\small , }\) |
[ ]\(\displaystyle =\)[ ]. |