AlgebraCan't solve!
posted by Estela .
21 OVER X squared MINUS 6x is equal to 1 OVER x(x6)(x+5).
I have to rewrite the ration expression as an equivalent rational expression with the given denominator.

x^2  6 x = x(x6)
So, assuming that x is not equal to zero or 6, multiply both sides by
x (x6):
21 = 1/(x+5) >
x = 1/21  5 =  104/21