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1.3*x-(1/2) = (1/4)*x-1 // - (1/4)*x-1
1.3*x-((1/4)*x)-(1/2)+1 = 0
1.3*x+(-1/4)*x-1/2+1 = 0
1.05*x+1/2 = 0 // - 1/2
1.05*x = -1/2 // : 1.05
x = -1/2/1.05
x = -0.47619048
x = -0.47619048
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