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x+2*x+(1/2)*x-125-31+14 = 180 // - 180
x+2*x+(1/2)*x-180-125-31+14 = 0
7/2*x-322 = 0 // + 322
7/2*x = 322 // : 7/2
x = 322/7/2
x = 92
x = 92
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