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x in (-oo:+oo)
(-1/5)*(x-(2/5)) = (-1/9)*(x-6) // - (-1/9)*(x-6)
(-1/5)*(x-(2/5))-((-1/9)*(x-6)) = 0
(-1/5)*(x-2/5)+(1/9)*(x-6) = 0
1/9*(x-6)-1/5*(x-2/5) = 0
1/9*(x-6)-1/5*(x-2/5) = 0
-4/45*x-44/75 = 0
-4/45*x-44/75 = 0
-4/45*x-44/75 = 0 // + 44/75
-4/45*x = 44/75 // : -4/45
x = 44/75/(-4/45)
x = -33/5
x = -33/5
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