Question

(x + y = -5
(3x - y = 7​

Answer 1

(x=-5-y

(3x-y=7

3×(-5-y)-y=7

-15-3y-y=7

-15-4y=7

-4y=7+15

-4y=22

y=22/-4

y=-5,5

x=-5-5,5

x=-10,5