Answer:
15
Explanation:
1) let’s bring all the like terms(terms that have the same variable) together so we can combine them
Bring”6m” to the left(doing this will make 6m negative) And bring 30 to the right(doing this will make 30 negative)
*they switch spots basically*
So
4m-6m=-30
-2m=-30
Divide both sides by -2
M=15
Hope this helps!