SOLUTION: -4x+7y=9 2y=-5x-22 solve using addition method

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Question 202913: -4x+7y=9
2y=-5x-22
solve using addition method
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
2y=-5x-22
5x+-+2y+=+-22 Mult by 7
35x+-+14y+=+-154
-4x%2B7y=9 mult by 2
-8x+%2B+14y+=+18
Now add them
-8x+%2B+14y+=+18
35x+-+14y+=+-154
----------------------
27x+=+-136
x++=+-5.03
Now solve for y and you're there