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(2*x)/(-1)+x-2+8 = 5/y // - 5/y
(2*x)/(-1)+x-(5/y)-2+8 = 0
x-2*x-5*y^-1-2+8 = 0
6-x-5*y^-1 = 0 // - 6-5*y^-1
-x = -(6-5*y^-1) // * -1
x = 6-5*y^-1
x = 6-5*y^-1
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