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2x + 6 + 3x - 12 = 9
5x = 15
x = 3
2) 1/2 x + 5 = 3x - 2 1/2
kalikan 2 semuanya:
x + 10 = 6x - 5
- 5x = - 15
x = 3
2.
Karena penyebut pecahan ruas kanan dan ruas kiri sama, maka berlaku: