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d in (-oo:+oo)
(1/3)*(d-4)-((3/2)*(5*d-3)) = 7/12 // - 7/12
(1/3)*(d-4)-((3/2)*(5*d-3))-(7/12) = 0
(1/3)*(d-4)+(-3/2)*(5*d-3)-7/12 = 0
1/3*(d-4)-3/2*(5*d-3)-7/12 = 0
(1/3*12*(d-4))/12+(-3/2*12*(5*d-3))/12-7/12 = 0
1/3*12*(d-4)-3/2*12*(5*d-3)-7 = 0
38-86*d-7 = 0
31-86*d = 0
(31-86*d)/12 = 0
(31-86*d)/12 = 0 // * 12
31-86*d = 0
31-86*d = 0 // - 31
-86*d = -31 // : -86
d = -31/(-86)
d = 31/86
d = 31/86
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