Answer:
[tex]a = \frac{u}{k + b} [/tex]
Step-by-step explanation:
Factor out the common term a.
[tex]u = a(k + b)[/tex]
Divide both sides by k + b.
[tex] \frac{u}{k + b} = a[/tex]
Switch sides.
[tex]a = \frac{u}{k + b} [/tex]
hence, the answer is u/k + b.
