Answer:
-15-4m-m
Step-by-step explanation:
There is a variable so you are going to be careful.
First you do the distributive property with the parenthesis.
Since there is a negative infront of the two, you multiply everything by that negative number
So -2 times -9 is 18 and -2 times 2m is -4m.
Now your problem should look like this.
3-18-4m=m
Now combine like terms
You should come up with:
-15-4m=m
Since you cannot add anything else you would leave it like that!