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3x = 7 - 1
3x = 6
x = 6 :3
x = 2
b. 8y - 15 = 2y - 8
8y - 2y = -8 + 15
6y = 7
y = 7 : 6
c. 3(x + 4) = 2x - 26
3x+ 12 = 2x - 26
3x - 2x = -26 - 12
x = -36
d. (kaga tau)
Maaf ya kalau salah! :-)
3x = 6
x = 2
b. 9y - 2y = 15 - 8
7y = 7
y = 1
c. 3x + 12 = 2x - 26
3x - 2x = -26 -12
x = -38
d. 1/3x - 7/3 = 5x + 7
1/3x - 5x = 7 + 7/3
- 14/3x = 31/3
-x = -93/42