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(1/4)*(4*x-1) = -1/9-(4/9) // + -1/9-(4/9)
(1/4)*(4*x-1)-(-1/9)+4/9 = 0
(1/4)*(4*x-1)+1/9+4/9 = 0
1/4*(4*x-1)+1/9+4/9 = 0
(1/4*9*(4*x-1))/9+1/9+4/9 = 0
1/4*9*(4*x-1)+1+4 = 0
9*x-5/4+4 = 0
9*x+11/4 = 0
(9*x+11/4)/9 = 0
(9*x+11/4)/9 = 0 // * 9
9*x+11/4 = 0
9*x+11/4 = 0 // - 11/4
9*x = -11/4 // : 9
x = -11/4/9
x = -11/36
x = -11/36
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