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x in (-oo:+oo)
3*x-(3/8) = 237/8 // - 237/8
3*x-(3/8)-(237/8) = 0
3*x-3/8-237/8 = 0
3*x-30 = 0 // + 30
3*x = 30 // : 3
x = 30/3
x = 10
x = 10
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