huh???

first find a common denominator. 45 is the least common denominator. convert all numbers to fractions with 45 as the denominator. Simplify the problem by subtracting the first term, which is 30, which is actually 1350/45 now on the right side. times both sides by 45 and there's your answer. It should be A=-1310.

This looks like a simple solve for "a" algebraic equation.

There are a couple ways to do this problem, here is my personal favorite:
Multiple both sides of the equation by 45, this will cancel out the denominator in both of the fractions.
5=1350+a
Then solve for "a" by subtracting 1350 from both sides.
-1310=a