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x in (-oo:+oo)
(1/2)*x-8 = (-3/2)*x+2 // - (-3/2)*x+2
(1/2)*x-((-3/2)*x)-8-2 = 0
(1/2)*x+(3/2)*x-8-2 = 0
2*x-10 = 0 // + 10
2*x = 10 // : 2
x = 10/2
x = 5
x = 5
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