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x in (-oo:+oo)
2*x = 3/8 // - 3/8
2*x-(3/8) = 0
2*x-3/8 = 0
2*x-3/8 = 0 // + 3/8
2*x = 3/8 // : 2
x = 3/8/2
x = 3/16
x = 3/16
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