Answer:
~ 8m+6
Explanation
~ So first we have to expand the brackets
~ Expanding the brackets we should have: 4 times m and 4 times negative three.
~ Now re write it out: 18+4m-12+4m
~ Collect like-terms now such as all the m’s and normal numbers.
~ Collect all the m’s: 4m+4m=8m. Collect other numbers: 18-12=6
~ And now, you should have 8m+6
