Diketahui persamaan -5x + 2y = 11. jika nilai x = -1, nilai y adalah….

-5(-1) + 2y = 11
5 + 2y = 11
2y = 11-5
2y = 6
y = 6:2
y = 3

-5x + 2y = 11 x = -1
-5.-1 + 2y=11
5+2y=11
2y=11-5
2y=6
y=3