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anonymous

  • 5 years ago

Solve using the elimination method 3r-4s=-6 4r+3s=17 This would not be possible right? or would it be 7r-1s=9?

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  1. anonymous
    • 5 years ago
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    eliminate either r or s...s looks better since you have opposite signs already

  2. anonymous
    • 5 years ago
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    multiply by top by 3 and bottom by 4

  3. anonymous
    • 5 years ago
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    would it be r=1.3?

  4. anonymous
    • 5 years ago
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    9r - 12s = -18 16r +12s=68

  5. anonymous
    • 5 years ago
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    solve for r

  6. anonymous
    • 5 years ago
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    r= 10/3 sp sub that in to find s

  7. anonymous
    • 5 years ago
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    25r=50 r=2?

  8. anonymous
    • 5 years ago
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    3(10/3) - 4s = -6 10-4s=-6 -4s = -16 s= 4

  9. anonymous
    • 5 years ago
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    (10/3, 4)

  10. anonymous
    • 5 years ago
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    Ok I'm really confused, where did the 10 come from? Sorry I have a learning disability and really have a hard time with math.

  11. anonymous
    • 5 years ago
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    it is solving a system by elimination with multiplication....ever heard of that

  12. anonymous
    • 5 years ago
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    Yes, I am doing that right now in my math class, please don't think I am looking for you to give me the answer. I have Math 117 next and I have to understand this.

  13. anonymous
    • 5 years ago
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    It has only ever shown how to solve when y or x is a negative and positive of the same number never two different numbers

  14. anonymous
    • 5 years ago
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    can you come to whiteboard so I Can write it out http://www.twiddla.com/536745

  15. anonymous
    • 5 years ago
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    (2,3)

  16. anonymous
    • 5 years ago
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    thanks!

  17. anonymous
    • 5 years ago
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    YW!!!

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