(e) -12 atau -2
Pembahasan:
* -3 (x – 7) + 2 = -13
-3x + 21 + 2 = -13
-3x + 23 = -13
-3x = -13 – 23
-3x = -36
x = 12
* -3 (x – 7) + 2 = -13
-3 (-(x – 7) + 2 = -13
(e) -12 atau -2
Pembahasan:
* -3 (x – 7) + 2 = -13
-3x + 21 + 2 = -13
-3x + 23 = -13
-3x = -13 – 23
-3x = -36
x = 12
* -3 (x – 7) + 2 = -13
-3 (-(x – 7) + 2 = -13
Editor: Annisa Fadilla