Question

-10x-2y=28 , 3x+2y=14

Answer 1

-10x-2y=28
3x+2y=14

-7x= 42
7x = -42

x= -6

Answer 2

{ -1Ox - 2y=28
{3x+2y=14
:
:
-7x=42
x= - 42/7
x= - 6

3x + 2y=14
3*(-6)+2y=14
-18+2y=14
2y=14+18
2y=32
y=32/2
y=16