Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

teenandtoddlermom

  • 3 years ago

Help please? Solve by the elimination method. 4a + 4b =8 -4a + b =37 Is there a solution (type an ordered pair), infinitely many solutions, or no solutions?

  • This Question is Closed
  1. asdf34
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    4(a+b) = 8 a+b = 4 subtract in second equation: -5a = 33 a = 33/-5 Therefore b = 8.6

  2. Grazes
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    4a + 4b =8 + -4a + b =37 ------------------ 5b = 45 --- --- 5 5 ------------------ b = 9

  3. teenandtoddlermom
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    how do I type an ordered pair for these equations?

  4. asdf34
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    There must be a few solutions

  5. teenandtoddlermom
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Well that one I got incorrect, so I need to do a similar excercise, what i'm looking for is to be shown how to do these step by step so I can learn the process myself, can you help me? Here is the next equation.. 4a + 5b =13 -4a +b =17

  6. Grazes
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    b=9 4a + 4b =8 4a+4(9)=8 4a=-28 a=-7 Ordered pair is (-7,9)

  7. teenandtoddlermom
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Can you help me rework the next equation that I listed? 4a + 5b =13 -4a +b =17

  8. Grazes
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    4a + 5b =13 + -4a +b =17 ----------------- 6b=30 b=5 4a+5(5)=13 4a+25=13 4a=-12 a=-3 (-3,5)

  9. teenandtoddlermom
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Thank you Grazes & Violy. I appreciate the help.

  10. Grazes
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    np.

  11. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy