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JustinR

What is the solution of the system? 7x + 5y = 19 –7x – 2y = –16

  • one year ago
  • one year ago

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  1. precal
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    |dw:1353454749647:dw|lets use the addition method

    • one year ago
  2. precal
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    |dw:1353454777831:dw|

    • one year ago
  3. precal
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    |dw:1353454798658:dw|

    • one year ago
  4. JustinR
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    oh ok so would it be (2,1)

    • one year ago
  5. precal
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    yes

    • one year ago
  6. JustinR
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    kewl can i ahev help with another one too please?

    • one year ago
  7. JustinR
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    Which method would be the simplest way to solve the system? y = x 2x + 3y = 28

    • one year ago
  8. precal
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    sub because you already know what y is it is x 2x+3x=28 finish solving for x

    • one year ago
  9. JustinR
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    oh ok so how bout this one? What is the solution of the system? y = x 2x + 3y = 28

    • one year ago
  10. precal
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    |dw:1353455149190:dw|finish it

    • one year ago
  11. JustinR
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    |dw:1353455223111:dw|

    • one year ago
  12. precal
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    yes and y=x so y=5.6

    • one year ago
  13. precal
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    these 2 lines cross at (5.6, 5.6)

    • one year ago
  14. JustinR
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    (2, 3) (8, 4) (7, 3.5) (2, 14) But these are my options for an answer!

    • one year ago
  15. precal
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    did you write the system correctly?

    • one year ago
  16. JustinR
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    ???

    • one year ago
  17. JustinR
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    What is the solution of the system? y = 1/2 x 2x + 3y = 28

    • one year ago
  18. JustinR
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    sorry I wrote it wrong

    • one year ago
  19. precal
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    |dw:1353455453558:dw|is this correct?

    • one year ago
  20. precal
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    |dw:1353455491158:dw|correct solution please close this problem and post a new one

    • one year ago
  21. JustinR
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    NO its y=1/2x 2x+3y=28 That is the problem!

    • one year ago
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