Question

1)
2 x - y = 3,
3 x + y = -4;​

Answer 1

Пошаговое объяснение:

2x-y=3

y= -4+3x

$2x - ( - 4 - 3x) = 3$

$x = - \frac{1}{5}$

$y = - 4 - 3 \times ( - \frac{ 1}{5})$

$y = - \frac{17}{5}$