titik potong y=4x-11 dan 3y=-2x-5

jawab

y = 4x - 11
3y = - 2x - 5
3(4x -11) = - 2x - 5
12x - 33 = -2x - 5
14x = 28
x = 2

y = 4(2)   - 11
y = - 3

(x,y) =(2, -3)