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x in (-oo:+oo)
x/8 = 6/4 // - 6/4
x/8-(6/4) = 0
x/8-3/2 = 0
1/8*x-3/2 = 0 // + 3/2
1/8*x = 3/2 // : 1/8
x = 3/2/1/8
x = 12
x = 12
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