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5*((1/2)*x-2) = 25 // - 25
5*((1/2)*x-2)-25 = 0
5*(1/2*x-2)-25 = 0
5*(1/2*x-2)-25 = 0
5/2*x-35 = 0
5/2*x-35 = 0
5/2*x-35 = 0 // + 35
5/2*x = 35 // : 5/2
x = 35/5/2
x = 14
x = 14
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