Hitunglah nilai x (jika ada) yang memenuhi persamaan berikut. a.(2x-2)= 4 b.(x-7) = 3 c.(3x-8)= -4

a. (2x - 2) = 4
2x = 4 + 2
2x = 6
x = 6/2
x = 3

b. (x - 7) = 3
x = 3 + 7
x = 10

c. (3x - 8) = -4
3x = -4 + 8
3x = 4
x = 4/3
x = 1,333...