SOLUTION: Help me to solve m+2n=3

Algebra ->  Equations -> SOLUTION: Help me to solve m+2n=3      Log On


   

Question 1189782: Help me to solve m+2n=3
Found 2 solutions by josgarithmetic, math_tutor2020:
Answer by josgarithmetic(39838) About Me  (Show Source):
You can put this solution on YOUR website!
Meaning, how or for what? variable, m? or n?

Answer by math_tutor2020(3838) About Me  (Show Source):
You can put this solution on YOUR website!

In the future, please post full instructions to the problem.

If you want to solve for m, then,
m+2n = 3
m = 3-2n
I subtracted 2n from both sides to undo the +2n

Or if you want to solve for n, then
m+2n = 3
2n = 3-m
n = (3-m)/2
We first subtract off m, then divide both sides by 2. Effectively, I'm following PEMDAS in reverse.