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x in (-oo:+oo)
q = (3-(8*x))/(-5) // - (3-(8*x))/(-5)
q-((3-(8*x))/(-5)) = 0
q-((3-8*x)/(-5)) = 0
(-1*(3-8*x))/(-5)+q = 0
(-1*(3-8*x))/(-5)+(-5*q)/(-5) = 0
-1*(3-8*x)-5*q = 0
8*x-5*q-3 = 0
(8*x-5*q-3)/(-5) = 0
(8*x-5*q-3)/(-5) = 0 // * -5
8*x-5*q-3 = 0
8*x-5*q-3 = 0 // + -5*q-3
8*x = -(-5*q-3) // : 8
x = (-(-5*q-3))/8
x = (3-(-5*q))/8
x = (3-(-5*q))/8
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