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2*(x+2)+2*7*(1/2) = 29 // - 29
2*(x+2)+2*7*(1/2)-29 = 0
2*(x+2)-29+7 = 0
2*(x+2)-29+7 = 0
2*x-29+11 = 0
2*x-18 = 0
2*x-18 = 0
2*x-18 = 0 // + 18
2*x = 18 // : 2
x = 18/2
x = 9
x = 9
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