SOLUTION: May you help me with this problem:
9m-3n=20
3m+6n=2
The instructions are to use linear combinations to solve the linear system. Then check your solution. Thank you for time.
Algebra.Com
Question 402805: May you help me with this problem:
9m-3n=20
3m+6n=2
The instructions are to use linear combinations to solve the linear system. Then check your solution. Thank you for time.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
9m-3n=20
3m+6n=2
-------------
Multiply thru the 1st equation by 2:
18m-6n = 40
3m +6n = 2
---
Add the equations and solve for "m":
21m = 42
m = 2
----
Solve for "n":
3m+6n = 2
3*2+6n = 2
6n = -4
n = -2/3
===========
Cheers,
Stan H.
=============
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