X-3y=5 dan 3x+2y=-7 Tentukan himpunan penyelesaiannya

X -3y = 5 ×3 = 3x - 9y = 15
3X+2y = -7 ×1 = 3× + 2y = -7
_______________________ -
= -11 y = 22
y = -2
x - 3y = 5
x - 3(-2) = 5
× -(-6) = 5
x = 5+ 6
× = 11
maaf ya kalo salah