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3*x-((8*12)/29) = -7 // + 7
3*x-((8*12)/29)+7 = 0
3*x-96/29+7 = 0
3*x+107/29 = 0 // - 107/29
3*x = -107/29 // : 3
x = -107/29/3
x = -107/87
x = -107/87
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