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8*x-((1/4)*(8*x-(1/2)))-(1/2) = 0
(-1/4)*(8*x-1/2)+8*x-1/2 = 0
8*x-1/4*(8*x-1/2)-1/2 = 0
(-1/4*2*(8*x-1/2))/2+(2*8*x)/2-1/2 = 0
2*8*x-1/4*2*(8*x-1/2)-1 = 0
12*x-1+1/4 = 0
12*x-3/4 = 0
(12*x-3/4)/2 = 0
(12*x-3/4)/2 = 0 // * 2
12*x-3/4 = 0
12*x-3/4 = 0 // + 3/4
12*x = 3/4 // : 12
x = 3/4/12
x = 1/16
x = 1/16
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