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2x = -6
x = -3
b. 3x - 7 = 14
3x = 14+ 7
3x = 21
x = 7
c. 3x - 9 = 4x + 5
3x - 4x = 5 + 9
-x = 14
x = -14
d. 2 (3x + 4) = 6 - (2x + 5)
6x + 8 = 6 - 2x -5
6x + 2x = 6 - 5 - 8
8x = -7
x = -7/8
e. 2 (x - 3)/5 = x - 3/5
(2x - 6)/ 5 = (x - 3)/5
2x - 6 = x - 3
2x - x = - 3 +6
x = 3
maap kalo ada salah itung