Question

{2x+7y-44=0, 2x-3y=-36;

Answer 1

$left { {{2x+7y-44=0} atop {2x-3y=-36}} right.$

2x-3y=-36 

y=2/3x+12

2x+7y-44=0
2x+7*(2/3x+12)-44=0
20/3x+40=0

x=-40/(20/3)
x=-6

2x-3y=-36 
2*(-6)-3y=-36 

-12-3y+36=0

24-3y=0

y=24/3
y=8

Ответ: x=-6; y=8.