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3x - 2 = 32 + 6x
Jawab:
3x - 2 = 32 + 6x
3x - 2 + 2 = 32 + 6x + 2
3x - 6x = 34 + 6x - 6x
-3x = 34
(-1/3) . (-3x) = (-1/3) . 34
Menjadi:
x = - 34 / 3
Soal kanan:
3(4x - 5) = 2(3x + 7)
12x - 15 = 6x + 14
12x - 15 + 15 = 6x + 14 + 15
12x - 6x = 6x + 29 - 6x
6x = 29
1/6 . 6x = 1/6 . 29
Menjadi:
x = 29/6 = 4 5/6