SOLUTION: Solve this system of equations using either addition or substitution. 2m=n-3 3m=2n-9 Please provide a check. THANKS IN ADVANCE. I TOTALLY APPERICIATE YOU TAKING THE TI

Algebra ->  Expressions-with-variables -> SOLUTION: Solve this system of equations using either addition or substitution. 2m=n-3 3m=2n-9 Please provide a check. THANKS IN ADVANCE. I TOTALLY APPERICIATE YOU TAKING THE TI      Log On


   

Question 726149: Solve this system of equations using either addition or substitution.
2m=n-3
3m=2n-9
Please provide a check.

THANKS IN ADVANCE. I TOTALLY APPERICIATE YOU TAKING THE TIME TO HELP ME.
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
2m=n-3 MULTIPLY BY -2 & ADD.
3m=2n-9
-4m=-2n+6
----------------
-m=-3
m=3 ans.
2*3=n-3
6=n-3
n=6+3
n=9 ans.
Proof:
3*3=2*9-9
9=18-9
9=9