SOLUTION: How would solve this system by addition? 5x - 4y = -5 x - 2y = -7

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Question 121801: How would solve this system by addition?

5x - 4y = -5 x - 2y = -7
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
5X-4Y=-5 NOW MULTIPLY THE OTHER EQUATION BY -5 & ADD THEM.
-5X+10Y=35
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6Y=30
Y=30/6
Y=5 ANSWER.
5X-4*5=-5
5X-20=-5
5X=-5+20
5X=15
X=15/5
X=3 ANSWER.
PROOF
3-2*5=-7
3-10=-7
-7=-7