Solving system of equations

Algebra
Tutor: None Selected Time limit: 1 Day

x+y=-1

x+2y=-2

Solution is (ordered pair)

Sep 13th, 2015

Thank you for the opportunity to help you with your question!

x+y=-1

x=-1-y

so substitute the second equation:

(-1-y)+2y=-2

-1-y+2y=-2

-1 + y=-2

hence y=-1

x=0

Please let me know if you need any clarification. I'm always happy to answer your questions.
Sep 13th, 2015

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