Answer: -16
Step-by-step explanation:
Answer:
Can u please upload more clearer pictures ?
I'm assuming ya want us to simplify 
reemember some exponential rules


so




Hey there! I'm happy to help!
We want to get m all by itself on one side of the equation. To do this, we use inverse operations on both sides of the equation to cancel out variables on one side to isolate m.
am/c=n
We multiply both sides by c.
am=nc
We divide both sides by a.
m=(nc)/a
I hope that this helps! Have a wonderful day! :D