Question

m+7=3+m+4 solve for m

Answer 1

M+7=3+m+4
Combine like-terms
0m=0
M is ARN (All Real Numbers)

Answer 2

remember you can do anything to an equaiton as long as you do it to both sides

m+7=3+m+4
m+7=m+3+4
m+7=m+7
minus 7 from boths ides
m=m
this is true
therefor all real numbers will work for m
m=all real numbers