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x in (-oo:+oo)
(1/2)*x-(3/4) = -1/8 // + -1/8
(1/2)*x-(3/4)-(-1/8) = 0
(1/2)*x-3/4+1/8 = 0
1/2*x-5/8 = 0 // + 5/8
1/2*x = 5/8 // : 1/2
x = 5/8/1/2
x = 5/4
x = 5/4
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