Answer:

Step-by-step explanation:

Combine like terms

Distribute the 7

Subtract 3m from each side

Add 7 to each side

Divide by 4

It would be -12.75 because it is the opposite of 12.75
For the #4 - 8/2 & 16/4
For the #5 - 10/2 & 25/5
For the #3 - 6/2 & 9/3
For the #6 - 12/6 & 36/6
I think these are right .. Hope this helps. (:
The answer is 10 because its in the tens place