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(8*x+8)/7-((x+3)/3) = 5 // - 5
(8*x+8)/7-((x+3)/3)-5 = 0
(8*x+8)/7+(-1*(x+3))/3-5 = 0
(3*(8*x+8))/(3*7)+(-1*7*(x+3))/(3*7)+(-5*3*7)/(3*7) = 0
3*(8*x+8)-1*7*(x+3)-5*3*7 = 0
17*x-105+3 = 0
17*x-102 = 0
(17*x-102)/(3*7) = 0
(17*x-102)/(3*7) = 0 // * 3*7
17*x-102 = 0
17*x-102 = 0 // + 102
17*x = 102 // : 17
x = 102/17
x = 6
x = 6
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