(b) -3
(c) 3
(d) 4
(e) 5
Pembahasan: 3x + 1 = 9x - 2
3x + 1 = 32(x – 2)
3x + 1 = 32x - 4
x + 1 = 2x – 4
x – 2x = -4 – 1
-x = -5
(b) -3
(c) 3
(d) 4
(e) 5
Pembahasan: 3x + 1 = 9x - 2
3x + 1 = 32(x – 2)
3x + 1 = 32x - 4
x + 1 = 2x – 4
x – 2x = -4 – 1
-x = -5
Editor: Suci Annisa Caroline