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anonymous

  • one year ago

Rewrite the equation in Ax+By=C This is what I have so far: y-3=2(x-5) y-2=2x-10

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  1. jim_thompson5910
    • one year ago
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    since we want it in the form Ax+By=C, you basically have to get the x & y terms on the left side get everything else to the right side

  2. anonymous
    • one year ago
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    So subtract 2x. 2x-y-3=-10

  3. anonymous
    • one year ago
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    I mean -2x+y-3=-10

  4. anonymous
    • one year ago
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    correct?

  5. anonymous
    • one year ago
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    Then -2x+y=-7

  6. jim_thompson5910
    • one year ago
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    good, y-3=2(x-5) y-3=2x-10 -2x+y = -10+3 -2x+y = -7

  7. jim_thompson5910
    • one year ago
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    now some books require A to be positive to do that, we multiply both sides by -1 -2x+y = -7 -1*(-2x+y) = -1*(-7) 2x-y = 7

  8. anonymous
    • one year ago
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    Then its 2x+y=7?

  9. jim_thompson5910
    • one year ago
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    this step is optional

  10. anonymous
    • one year ago
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    ohh

  11. jim_thompson5910
    • one year ago
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    you forgot to multiply -1 by the +y term to get -y

  12. anonymous
    • one year ago
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    Thanks for the clarification. 2x-y=7??

  13. jim_thompson5910
    • one year ago
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    yep, assuming the requirement your book/teacher needs A > 0

  14. anonymous
    • one year ago
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    Yes! Alright thanks for that!

  15. jim_thompson5910
    • one year ago
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    no problem

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