SOLUTION: 2m+3n=4 -m+2n=5

Question 705832: 2m+3n=4
-m+2n=5
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Hint: Double every value in the second equation to get -2m+4n=10

Then add this new equation to the first equation to get

2m+3n=4
-2m+4n=10
---------
0m+7n=14

So 7n = 14. Solve for n. Then use the solution for n to find the solution for m.

--------------------------------------------------------------------------------------------------------------

If you need more help, you can email me at jim_thompson5910@hotmail.com

To find other ways to contact me, you can also visit my website: http://www.freewebs.com/jimthompson5910/home.html

Thanks,

Jim

--------------------------------------------------------------------------------------------------------------
RELATED QUESTIONS
solve each system using either methods substitution or elimination 2m+3n=4... (answered by stanbon)

4(3-m)=5(2m+1) (answered by jim_thompson5910)

5-m/2m-10 (answered by jim_thompson5910)

4+2m-m (answered by checkley71)

(3m^-1n^4)^-2... (answered by Fombitz)

Solve using elimination by addition of the equations: 2m-m-10,... (answered by solver91311)

simplify: 2m^2+2m-4 / m+3 (answered by oscargut)

(2m+3)(2m-3)(m+4) (answered by JulietG)

2m + n = 0 m + 2n =... (answered by Alan3354)