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2*x+1/2 = x/7+7 // - x/7+7
2*x-(x/7)+1/2-7 = 0
13/7*x-13/2 = 0 // + 13/2
13/7*x = 13/2 // : 13/7
x = 13/2/13/7
x = 7/2
x = 7/2
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