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krissywatts Group Title

use substitution method 1/2x+1/2y=-1 1/3x-1/2y=-4 what is the solution set? i get -6,4 is this correct?

  • one year ago
  • one year ago

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  1. ashrafh Group Title
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    Yes, you are correct.

    • one year ago
  2. krissywatts Group Title
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    thanks

    • one year ago
  3. ashrafh Group Title
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    You're welcome. :)

    • one year ago
  4. krissywatts Group Title
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    2a+4b=-24 a=20-2b i need step by step help i think I have it set up like this 2(20-2b)+4b=-24 40-4b+4b=-24 40-0b=-24 add 40 to both sides -0 divided by 16 so b has no solution

    • one year ago
  5. ashrafh Group Title
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    2(20-2b) + 4b = -24 40 - 4b + 4b = -24 40 = -24 So yes, you are correct. b has no solution.

    • one year ago
  6. krissywatts Group Title
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    thanks once again :)

    • one year ago
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