_5x__ + _20__
x+4 4+x
change the second denominator ot x+4
Now, they have the same denominators..
(5)(x+4)/(x+4) or 5
check this.
x+4 4+x
change the second denominator ot x+4
Now, they have the same denominators..
(5)(x+4)/(x+4) or 5
check this.