tentukan nilai x 1) 5x-8=-10x-4 2)2x-12=1/4x+1/2

Nomor 1
5x - 8 = -10x - 4
5x + 10x = -4 + 8
15x = 4
x = 4/15

Nomor 2
2x - 12 = ¼ x + ½
2x - 12 = (x + 2) / 4
4(2x - 12) = x + 2
8x - 48 = x + 2
8x - x = 2 + 48
7x = 50
x = 50/7

Semoga berguna +_+