Answer:

Step-by-step explanation:
The given equation is 
We want to rearrange this equation so that, n becomes the independent variable.
This means we must solve form, m which becomes the dependent variable.
We expand the parenthesis to get:

We now subtract 1 from both sides to obtain:

We simplify to obtain:

This can be rewritten as

Answer:
x
Step-by-step explanation:
3x+xy
Factor out an x
x(3+y)
The greatest common factor is x
I believe that it is C, mind you I could’ve got it wrong. It’s been awhile since I’ve done that kind of math.