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anonymous

  • one year ago

3x-6y=12 2x+6y=-12 Solve by using elimination

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  1. anonymous
    • one year ago
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    @nincompoop

  2. anonymous
    • one year ago
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    @amistre64

  3. amistre64
    • one year ago
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    what are your thoughts?

  4. anonymous
    • one year ago
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    i have no idea im so confused

  5. anonymous
    • one year ago
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    i forgot how to do it

  6. wolf1728
    • one year ago
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    Pandabear78693 - so you were taught how to do these?

  7. amistre64
    • one year ago
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    elimination involves adding the equations together so that one of the terms zeros out ...

  8. anonymous
    • one year ago
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    yes i was taught to do this but i forgot how to do it @wolf1728

  9. amistre64
    • one year ago
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    do the equations have a similar term to them that will cancel when added up?

  10. anonymous
    • one year ago
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    3x-6y=12 + 2x+6y=-12 _________ 5x=0 x=0 (Since the y's already canceled each other, I didn't have to multiply anything.) Now plug the x-value in both equation and see if it works: 3(0)-6y=12 -6y=12 y=-2 2(0)+6y=-12 6y=-12 y=-2 So the answer is (0,-2) I think Hope this helps!

  11. anonymous
    • one year ago
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    so i will add 3x and 2x

  12. amistre64
    • one year ago
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    you will add all like terms, the idea is to get one of the terms to cancel itself out i the process.

  13. amistre64
    • one year ago
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    recall that a-a = 0; known as the inverse of addition property or some such

  14. anonymous
    • one year ago
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    ooo okk

  15. anonymous
    • one year ago
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    thx 4 da medal

  16. anonymous
    • one year ago
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    Thanks for helping @amistre64 and @Peaches15 btw ur welcome

  17. amistre64
    • one year ago
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    good luck

  18. anonymous
    • one year ago
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    thank you thanks for explaining it @amistre64

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