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x in (-oo:+oo)
2057/30 = -((13/4)*(4*x-(6/(-5))))-1/3 // + -((13/4)*(4*x-(6/(-5))))-1/3
(13/4)*(4*x-(6/(-5)))+2057/30-(-1/3) = 0
(13/4)*(4*x+6/5)+2057/30+1/3 = 0
13/4*(4*x+6/5)+2057/30+1/3 = 0
(3*13/4*30*(4*x+6/5))/(3*30)+(3*2057)/(3*30)+(1*30)/(3*30) = 0
3*13/4*30*(4*x+6/5)+3*2057+1*30 = 0
1170*x+30+6522 = 0
1170*x+6552 = 0
(1170*x+6552)/(3*30) = 0
(1170*x+6552)/(3*30) = 0 // * 3*30
1170*x+6552 = 0
1170*x+6552 = 0 // - 6552
1170*x = -6552 // : 1170
x = -6552/1170
x = -28/5
x = -28/5
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