tolong banu mencari gradien garis

3(5 -2x) -4(y + 2) = 0
15 - 6x - 4y - 8 = 0
-6x - 4y + 7 = 0
4y = -6x + 7
y = (-6x + 7)/4
y = -6/4x + 7/4
y = -3/2x + 7/4
Jadi gradien = -3/2