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2*x-(1/2) = 3-x // - 3-x
2*x+x-(1/2)-3 = 0
2*x+x-1/2-3 = 0
3*x-7/2 = 0 // + 7/2
3*x = 7/2 // : 3
x = 7/2/3
x = 7/6
x = 7/6
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