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7*x-((1/4)*x)+5 = 145/2 // - 145/2
7*x-((1/4)*x)-(145/2)+5 = 0
7*x+(-1/4)*x-145/2+5 = 0
27/4*x-135/2 = 0 // + 135/2
27/4*x = 135/2 // : 27/4
x = 135/2/27/4
x = 10
x = 10
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