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(-5*x-3)/(-6)-((-3*x-3)/(-4)) = -4 // + 4
(-5*x-3)/(-6)-((-3*x-3)/(-4))+4 = 0
(-5*x-3)/(-6)+(-1*(-3*x-3))/(-4)+4 = 0
(-4*(-5*x-3))/(-6*(-4))+(-6*(-1)*(-3*x-3))/(-6*(-4))+(-6*(-4)*4)/(-6*(-4)) = 0
-4*(-5*x-3)-6*(-1)*(-3*x-3)-6*(-4)*4 = 0
2*x-6+96 = 0
2*x+90 = 0
(2*x+90)/(-6*(-4)) = 0
(2*x+90)/(-6*(-4)) = 0 // * -6*(-4)
2*x+90 = 0
2*x+90 = 0 // - 90
2*x = -90 // : 2
x = -90/2
x = -45
x = -45
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