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5*x-7/10 = (-1/2)*x-(29/10) // - (-1/2)*x-(29/10)
5*x-((-1/2)*x)-7/10+29/10 = 0
5*x+(1/2)*x-7/10+29/10 = 0
11/2*x+11/5 = 0 // - 11/5
11/2*x = -11/5 // : 11/2
x = -11/5/11/2
x = -2/5
x = -2/5
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