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(1/4)*(4*x-1) = -7/2-(7/2) // + -7/2-(7/2)
(1/4)*(4*x-1)-(-7/2)+7/2 = 0
(1/4)*(4*x-1)+7/2+7/2 = 0
1/4*(4*x-1)+7/2+7/2 = 0
(1/4*2*(4*x-1))/2+7/2+7/2 = 0
1/4*2*(4*x-1)+7+7 = 0
2*x+13/2+7 = 0
2*x+27/2 = 0
(2*x+27/2)/2 = 0
(2*x+27/2)/2 = 0 // * 2
2*x+27/2 = 0
2*x+27/2 = 0 // - 27/2
2*x = -27/2 // : 2
x = -27/2/2
x = -27/4
x = -27/4
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