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x in (-oo:+oo)
(2/3)*(x-7) = (3/5)*(4*x-5) // - (3/5)*(4*x-5)
(2/3)*(x-7)-((3/5)*(4*x-5)) = 0
(2/3)*(x-7)+(-3/5)*(4*x-5) = 0
2/3*(x-7)-3/5*(4*x-5) = 0
2/3*(x-7)-3/5*(4*x-5) = 0
-26/15*x-5/3 = 0
-26/15*x-5/3 = 0
-26/15*x-5/3 = 0 // + 5/3
-26/15*x = 5/3 // : -26/15
x = 5/3/(-26/15)
x = -25/26
x = -25/26
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