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x in (-oo:+oo)
x/8 = 7/12 // - 7/12
x/8-(7/12) = 0
x/8-7/12 = 0
1/8*x-7/12 = 0 // + 7/12
1/8*x = 7/12 // : 1/8
x = 7/12/1/8
x = 14/3
x = 14/3
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