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casidy_albright_96

  • 3 years ago

Use elimination to solve the systems of equations: -x+2y=18 x+8y=-38

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  1. Didgeridoo
    • 3 years ago
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    Add the two equations together to start.

  2. Didgeridoo
    • 3 years ago
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    You will get 10y = -20 Divide to solve for your y y=-2

  3. Didgeridoo
    • 3 years ago
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    Next, take your y, and substitute that into either of the first two equations. I'll use the second...

  4. casidy_albright_96
    • 3 years ago
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    x=-22?

  5. Didgeridoo
    • 3 years ago
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    Nicely done!

  6. casidy_albright_96
    • 3 years ago
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    so the final answer is (-22,-2)?

  7. Didgeridoo
    • 3 years ago
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    Yep

  8. casidy_albright_96
    • 3 years ago
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    thank you!!!

  9. Didgeridoo
    • 3 years ago
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    No problem

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