Answer:
[tex]a=\frac{m}{(q+r^2)}[/tex]
Step-by-step explanation:
We begin with the equation [tex]qa+r^2a=m[/tex] for which we need to solve for a.
The first thing that we can do is to factor out the a from both terms on the left side of the equation
[tex]qa+r^2a=m\\\\a(q+r^2)=m[/tex]
Then we can divide each side by [tex](q+r^2)[/tex] to isolate a
[tex]a(q+r^2)=m\\\\a=\frac{m}{(q+r^2)}[/tex]