SOLUTION: Please Help. Use elimination to solve each system of equations. 7M+4N=2 7M+2N=8

Question 182618: Please Help.
Use elimination to solve each system of equations.
7M+4N=2 7M+2N=8
Answer by jojo14344(1513) (Show Source): You can put this solution on YOUR website!

Given:
--------> EQN 1
--------> EQN 2
Let
Multiply EQN 2 by 2 and subtract from EQN 1:
EQN 2, (7x+2y=8)(2)=
Then,
7x+4y=2, EQN 1
-(14x+4y=16), New EQN 2 * remember to change signs
------------
------>
, subst. in NEW EQN 2:

-------->

It shows, both eqns will meet at point (2,-3):
------>RED>>>> EQN 1; GREEN>>> EQN 2
Thank you,
Jojo

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