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3*(x-7)+2 = (8*x-3)/7 // - (8*x-3)/7
3*(x-7)-((8*x-3)/7)+2 = 0
3*(x-7)+(-1*(8*x-3))/7+2 = 0
(3*7*(x-7))/7+(-1*(8*x-3))/7+(2*7)/7 = 0
3*7*(x-7)-1*(8*x-3)+2*7 = 0
13*x-144+14 = 0
13*x-130 = 0
(13*x-130)/7 = 0
(13*x-130)/7 = 0 // * 7
13*x-130 = 0
13*x-130 = 0 // + 130
13*x = 130 // : 13
x = 130/13
x = 10
x = 10
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