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= 1/2 x -2 + 3x - 2
= 7/2 x - 4
x - 4/2 + 3x - 2 = x + 3x - 4/2 - 2
= 4x + (- 4 - 4)/2)
= 4x - 8/2
= 4x - 4 = 4(x - 1)
kalau soalnya (x - 4)/2 + 3x - 2 :
(x - 4) / 2 + 3x - 2 = x/2 -4/2 + 3x - 2
= x/2 + 3x - 4/2 - 2
= (x + 6x)/2 + (-4 - 4)/2
= 7x/2 - 8/2
= 7x/2 - 4
semoga membantu :)