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(5*x-7)/3 = (9*x-7)/11 // - (9*x-7)/11
(5*x-7)/3-((9*x-7)/11) = 0
(5*x-7)/3+(-1*(9*x-7))/11 = 0
(11*(5*x-7))/(3*11)+(-1*3*(9*x-7))/(3*11) = 0
11*(5*x-7)-1*3*(9*x-7) = 0
28*x-56 = 0
(28*x-56)/(3*11) = 0
(28*x-56)/(3*11) = 0 // * 3*11
28*x-56 = 0
28*x-56 = 0 // + 56
28*x = 56 // : 28
x = 56/28
x = 2
x = 2
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