SOLUTION: Please show me step by step how to figure this 3 variable system question out: Then maybe I can understand it and do the rest of the questions. THANKS! 2m-4=6 m+2p=4 3p-n=5

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: Please show me step by step how to figure this 3 variable system question out: Then maybe I can understand it and do the rest of the questions. THANKS! 2m-4=6 m+2p=4 3p-n=5      Log On


   



Question 439384: Please show me step by step how to figure this 3 variable system question out:
Then maybe I can understand it and do the rest of the questions. THANKS!
2m-4=6
m+2p=4
3p-n=5

Found 2 solutions by Alan3354, robertb:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
2m-4=6 --> m = 5
m+2p=4
3p-n=5
---------
m+2p=4
5 + 2p = 4
p = -1/2
----------
3p-n=5
3(-1/2) - n = 5
n = -13/2

Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
I think you're missing a variable in the 1st equation? Possibly n?