Hello!
Answer:
a=-4
*The answer must have a negative sign.*
Explanation:
Distributive property: a(b+c)=ab+ac
First, you subtract by 5 from both sides of an equation.

Then, simplify.

Next, you subtract by a from both sides of an equation.

Simplify.

Then you can also divide by 2 from both sides of an equation.

And finally, simplify and solve. You can also divide by the numbers.


Hope this helps!
Thanks!
-Charlie
Have a great day!
:)
:D