Answer:
The ans is a = U/(b - k)
Step-by-step explanation:
If U + ka = ba, then we can also say ba = U + ka. We can now collect like terms
ba - ka = U
since a is common term to both ba and ka, we can have
a(b - k) = U
If we divide both sides by (b - k), we can now have
a = U/(b - k)
