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2*x+5 = x+(1/2)*x-x-2 // - x+(1/2)*x-x-2
2*x-x-((1/2)*x)+x+2+5 = 0
2*x-x+(-1/2)*x+x+2+5 = 0
3/2*x+7 = 0 // - 7
3/2*x = -7 // : 3/2
x = -7/3/2
x = -14/3
x = -14/3
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