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(3*x+6)/5+x+5 = 0
(3*x+6)/5+(5*x)/5+(5^2)/5 = 0
3*x+5*x+6+25 = 0
8*x+6+25 = 0
8*x+31 = 0
(8*x+31)/5 = 0
(8*x+31)/5 = 0 // * 5
8*x+31 = 0
8*x+31 = 0 // - 31
8*x = -31 // : 8
x = -31/8
x = -31/8
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