Question

{2x+5y=4
{X-3y=13

Плиииз

Answer 1

..........................

Answer 2

$left { {{2x+5y=4} atop {x-3y=13 | cdot 2}} right. \\ left { {{2x+5y=4} atop {2x-6y=26}} right. \\ 5y+6y=4-26\ 11y = -22\ y=-2\ x-3y=13 rightarrow x=13+3y rightarrow x=13+3 cdot (-2)=13-6=7$

Ответ: х = 7, у = -2