Can you help me solve this rational function?

Question

anonymous · Answer

$$\frac{ 2 }{ x+2 }+\frac{ 1 }{ x-2 } =\frac{ 13 }{ 21 }$$

anonymous · Answer

I know I need to find the LCD, I am not sure if it is (x+2)(x-1)?

anonymous · Answer

Woops meant (x+2)(x-2) for the LCD

kamibug · Answer

Close. :) Don't forget the 21! 
All three fractions need to have the same denominator before you can solve. 
21(x+2)(x-2)

anonymous · Answer

@KamiBug Okay, thank you! So when I multiply the left side of the equation the x+2 and x-1 cancel out and I am left with 21(2) and 21(1) so I get 42+21 on the left side.

On the right side 21 cancels out and I am left with 13(x+2)(x-2) so my right side of the equation looks like 13x+26+13x-26, simplify and then just 26x.

My equation now looks like 42+21=26x.
Did I do something wrong, I do not have an x^2(squared) value.