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(3*(x+4))/5 = 2*x-5 // - 2*x-5
(3*(x+4))/5-(2*x)+5 = 0
(3*(x+4))/5-2*x+5 = 0
(3*(x+4))/5+(-2*5*x)/5+(5^2)/5 = 0
3*(x+4)-2*5*x+25 = 0
12-7*x+25 = 0
37-7*x = 0
(37-7*x)/5 = 0
(37-7*x)/5 = 0 // * 5
37-7*x = 0
37-7*x = 0 // - 37
-7*x = -37 // : -7
x = -37/(-7)
x = 37/7
x = 37/7
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