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x in (-oo:+oo)
(9*x-1)/8-(4*x) = (3*x+4)/12+1/4 // - (3*x+4)/12+1/4
(9*x-1)/8-((3*x+4)/12)-(4*x)-(1/4) = 0
(9*x-1)/8-((3*x+4)/12)-4*x-1/4 = 0
(9*x-1)/8+(-1*(3*x+4))/12-4*x-1/4 = 0
(4*12*(9*x-1))/(4*8*12)+(-1*4*8*(3*x+4))/(4*8*12)+(-4*4*8*12*x)/(4*8*12)+(-1*8*12)/(4*8*12) = 0
4*12*(9*x-1)-1*4*8*(3*x+4)-4*4*8*12*x-1*8*12 = 0
336*x-1536*x-176-96 = 0
-1200*x-176-96 = 0
-1200*x-272 = 0
(-1200*x-272)/(4*8*12) = 0
(-1200*x-272)/(4*8*12) = 0 // * 4*8*12
-1200*x-272 = 0
-1200*x-272 = 0 // + 272
-1200*x = 272 // : -1200
x = 272/(-1200)
x = -17/75
x = -17/75
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