Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

pokemon23

  • 4 years ago

If 20 is added to a number the result is the same as 55 decreased by four times the number.Find the number. Help me If 20 is added to a number the result is the same as 55 decreased by four times the number.Find the number. Help me @Mathematics

  • This Question is Closed
  1. pokemon23
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    20+x=55-4x

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

    setup an equation with simple algebra. The "unknown" = the "number."

  3. pokemon23
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    is this correct?

  4. heisenberg
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Yep that's right.

  5. pokemon23
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    thanks

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

    can you solve those together? there are a few techniques for this.

  7. pokemon23
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    let me see

  8. pokemon23
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    20=55-3x

  9. pokemon23
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    75=-3x

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

    not quite. to get rid of the x on the left, subtract x to both sides. -4x - (1)x = -5x

  11. heisenberg
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    same with the 55.

  12. pokemon23
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    75=-5x

  13. heisenberg
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    what about: 25 - 55 = ?

  14. pokemon23
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    isn't 20

  15. pokemon23
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    subtract 55

  16. heisenberg
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    it's a negative number.

  17. pokemon23
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    ?????????

  18. heisenberg
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    20 - 55 = -35

  19. heisenberg
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    you have to subtract 55 from both sides.

  20. pokemon23
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    where did you get -35

  21. heisenberg
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    20 - 55 = 20 + -55 = -55 + 20 = -35

  22. pokemon23
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    -35=-5x

  23. heisenberg
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    that's right.

  24. pokemon23
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    x=7

  25. pokemon23
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    ty sir?

  26. heisenberg
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    booyah.

  27. pokemon23
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    lol

  28. 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