SOLUTION: 5x+2y=-7 7x-3y=17 How do I find what to multiple them by each time to help solve the system by the elimination method?

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Question 312522: 5x+2y=-7
7x-3y=17
How do I find what to multiple them by each time to help solve the system by the elimination method?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
If you want to eliminate +x+ , you have to multiply +5x and +7x, so multiply +5x by +7 and +7x by +-5 so when they add you will have +35x-35x=0.
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If you want to eliminate +y, you have to multiply +2y and +-3y, so multiply +2y by +3 and +-3y by +2 so when they add, you'll get +6y-6y=0.