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7x - 2(x + 4) = 2(4x - 7) + 3(x - 2)
7x - 2x - 8 = 8x - 14 + 3x - 6
5x - 8 = 11x - 20
-8 + 20 = 11x - 5x
12 = 6x
x = 12/6
x = 2
Jadi, nilai x yang memenuhi adalah 2
5.)
(8 - x)/2 - (5 - 3x)/4 = (x + 3)/3
[4(8 - x) - 2(5 - 3x)] / (2 . 4) = (x + 3)/3
[32 - 4x - 10 + 6x] / 8 = (x + 3)/3
(22 + 2x)/8 = (x + 3)/3
3(22 + 2x) = 8(x + 3)
66 + 6x = 8x + 24
66 - 24 = 8x - 6x
42 = 2x
x = 42/2
x = 21
Jadi, nilai x yang mmenuhi adalah 21
7x - 2x - 8 = 8x - 14 + 3x - 6
7x - 2x - 8x - 3x = 8 - 14 - 6
-6x = -12
x = -12/-6
x = 2