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(1/8)*(8*x-5) = -1/4-(9/4) // + -1/4-(9/4)
(1/8)*(8*x-5)-(-1/4)+9/4 = 0
(1/8)*(8*x-5)+1/4+9/4 = 0
1/8*(8*x-5)+1/4+9/4 = 0
(1/8*4*(8*x-5))/4+1/4+9/4 = 0
1/8*4*(8*x-5)+1+9 = 0
4*x-3/2+9 = 0
4*x+15/2 = 0
(4*x+15/2)/4 = 0
(4*x+15/2)/4 = 0 // * 4
4*x+15/2 = 0
4*x+15/2 = 0 // - 15/2
4*x = -15/2 // : 4
x = -15/2/4
x = -15/8
x = -15/8
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