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(1/2)*x-(1/8)-6 = (3/4)*x-(1/8)-4 // - (3/4)*x-(1/8)-4
(1/2)*x-((3/4)*x)-(1/8)+1/8-6+4 = 0
(1/2)*x+(-3/4)*x-1/8+1/8-6+4 = 0
-1/4*x-2 = 0 // + 2
-1/4*x = 2 // : -1/4
x = 2/(-1/4)
x = -8
x = -8
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