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2*x-(2*x)-x-(3/4)+2/4 = (1/2)*x-(3*x)-(1/2) // - (1/2)*x-(3*x)-(1/2)
2*x-(2*x)-x-((1/2)*x)+3*x-(3/4)+2/4+1/2 = 0
2*x-2*x-x+(-1/2)*x+3*x-3/4+2/4+1/2 = 0
3/2*x+1/4 = 0 // - 1/4
3/2*x = -1/4 // : 3/2
x = -1/4/3/2
x = -1/6
x = -1/6
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