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(2*x+1)/7-((3*x+2)/14) = x // - x
(2*x+1)/7-((3*x+2)/14)-x = 0
(2*x+1)/7+(-1*(3*x+2))/14-x = 0
(14*(2*x+1))/(7*14)+(-1*7*(3*x+2))/(7*14)+(7*14*(-x))/(7*14) = 0
14*(2*x+1)-1*7*(3*x+2)+7*14*(-x) = 0
7*x-98*x = 0
-91*x = 0
(-91*x)/(7*14) = 0
(-91*x)/(7*14) = 0 // * 7*14
-91*x = 0
-91*x = 0 // : -91
x = 0
x = 0
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