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