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2*x-(3*X)-(3/5)+1/2 = -11 // + 11
2*x-(3*X)-(3/5)+1/2+11 = 0
2*x-3*X-3/5+1/2+11 = 0
2*x-3*X+109/10 = 0 // - 109/10-3*X
2*x = -(109/10-3*X) // : 2
x = (-(109/10-3*X))/2
x = (-(109/10-3*X))/2
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