SOLUTION: 5m-2n=4
3m+n=9
solve the systems using the addition method.
Algebra.Com
Question 186803This question is from textbook beginning and intermediate algebra
: 5m-2n=4
3m+n=9
solve the systems using the addition method.
This question is from textbook beginning and intermediate algebra
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
5m-2n=4
3m+n=9 multiply by 2 & add.
5m-2n=4
6m+2n=18
----------
11m=22
m=22/11
m=2 ans.
5*2-2n=4
10-2n=4
-2n=4-10
-2n=-6
-n=-6/-2
n=3 ans.
Proof:
3*2+3=9
6+3=9
9=9
RELATED QUESTIONS
solve by either the substitution or the addition-orsubtraction method: 2m=n-3 and... (answered by ewatrrr)
I'm 46 and am trying to refresh my algebra....
How would I solve this by using... (answered by Gogonati,richwmiller)
Using the addition (elimination) method to solve systems of equations .
6x-4y=11... (answered by vleith)
How can i solve this by the substitution method?
2M=N-3... (answered by checkley71)
How do I solve the following systems of equations by using the addition method?
2x-y=3... (answered by robertb)
how do you solve 5m-2n=4 , 3m+n=9 substitution and... (answered by jim_thompson5910,JimboP1977)
Solve the following systems by using the Addition/Elimination Method.
-2x+y=2 and... (answered by Fombitz)
how would you solve by the substitution method or adding or subtracting method: 2m=n-3,... (answered by richwmiller)
Solve be either the subsistution or the addition-or-subtraction method.
2m = n - 3 (answered by rfer,adamchapman)