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(x-2)/3-((x-3)/4) = (x-4)/5 // - (x-4)/5
(x-2)/3-((x-3)/4)-((x-4)/5) = 0
(x-2)/3+(-1*(x-3))/4+(-1*(x-4))/5 = 0
(4*5*(x-2))/(3*4*5)+(-1*3*5*(x-3))/(3*4*5)+(-1*3*4*(x-4))/(3*4*5) = 0
4*5*(x-2)-1*3*5*(x-3)-1*3*4*(x-4) = 0
5*x-12*x+5+48 = 0
53-7*x = 0
(53-7*x)/(3*4*5) = 0
(53-7*x)/(3*4*5) = 0 // * 3*4*5
53-7*x = 0
53-7*x = 0 // - 53
-7*x = -53 // : -7
x = -53/(-7)
x = 53/7
x = 53/7
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