SOLUTION: solve this using comparison method of algebraic method 3. 1/x+1/y=0 2/x+ 5/y=-6

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Question 377342: solve this using comparison method of algebraic method
3. 1/x+1/y=0
2/x+ 5/y=-6
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
Multiply the top equation by -2: -2%2Fx+-+2%2Fy+=+0.
Add corresponding sides with the bottom equation, to get -2%2Fy+%2B+5%2Fy+=+-6,
or 3%2Fy+=+-6, or y = -1/2. Then from the top equation, -2 + 1/x = 0, or 1/x = 2, or x = 1/2.