Question

-4x-2y = -12
4x + 8 y = -24
помогите пжпжпжпжпжп​

Answer 1

Ответ:

$x = 6, \ y = -6$

Пошаговое объяснение:

$\begin{equation*} \begin{cases} -4x-2y = -12\ \ \ \ \ \ \ \ \ \ \ (1) \\ 4x + 8 y = -24\ \ \ \ \ \ \ \ \ \ \ \ \ \ (2) \end{cases}\end{equation*}$

$------------------\\(1) + (2):\\\\-4x+4x-2y+8y=-12+(-24)\\\\6y = -36\\\\y = -6\\\\------------------\\\\-4x-2y = -12,\ y = -6\\\\-4x -2(-6) = -12\\\\-4x+12=-12\\\\-4x=-24\\\\x=6$