He forgot to do the parenthesis before the exponent gets added!
Answer: a = -3
Explanations:
The given equation is:

This can be re-written as:

Collect like terms:

Cross multiply:

To verify if the solution is correct, substitute a = -3 into the question given. If the Right Hand Side equals the Left Hand Side, then the solution is correct.

Since the Left Hand Side = Right Hand Side = 7, the solution a = -3 is correct
A negative answer could mean that u owe someone money...or u still owe on a previous balance
Answer:
Lol for what
Step-by-step explanation: