b. x = 7 dan x = 1/3
c. x = -7 dan x = -1/3
d. x = 7 dan x = -1/3
Pembahasan :
3 + 2x = 4 - x
2x + x = 4 - 3
3x = 1
x = 1/3
-(3 + 2x) = 4 - x
-3 - 2x = 4 - x
b. x = 7 dan x = 1/3
c. x = -7 dan x = -1/3
d. x = 7 dan x = -1/3
Pembahasan :
3 + 2x = 4 - x
2x + x = 4 - 3
3x = 1
x = 1/3
-(3 + 2x) = 4 - x
-3 - 2x = 4 - x
Editor: Suci Annisa Caroline