terima kasih.......

|7x| = 3 - x

a) 7x = 3 - x
7x + x = 3
8x = 3
x = 3/8

b) 7x = -(3 - x)
7x = -3 + x
7x - x = -3
6x = -3
x = -3/6
x = -1/2

Jawaban : (E) x = -1/2 dan x = 3/8