If you were to solve the following system by substitution, what would be the best variable to solve for and from what equation? 2x+6y=9 3x-12y=15

The second equation because they all have a common factor of 3. You can get x by itself. However, with the first one, you'll end up with fractions instead.

X, in the second equation.

Step-by-step explanation:

4+n=5

step-by-step explanation:

this is because the four is four hours and the n represents the 1 extra hour over the weekend.

b= i'm srry i don't know that one.

4+n=5 n=1 because if vernon plays 5 hours a week then 4+1=5 hours.

hope this : )

there were a lot of them but the first one to pop up on a google search was bts