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pokemon23 Group Title

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

  • 3 years ago
  • 3 years ago

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  1. pokemon23 Group Title
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    20+x=55-4x

    • 3 years ago
  2. heisenberg Group Title
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    setup an equation with simple algebra. The "unknown" = the "number."

    • 3 years ago
  3. pokemon23 Group Title
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    is this correct?

    • 3 years ago
  4. heisenberg Group Title
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    Yep that's right.

    • 3 years ago
  5. pokemon23 Group Title
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    thanks

    • 3 years ago
  6. heisenberg Group Title
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    can you solve those together? there are a few techniques for this.

    • 3 years ago
  7. pokemon23 Group Title
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    let me see

    • 3 years ago
  8. pokemon23 Group Title
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    20=55-3x

    • 3 years ago
  9. pokemon23 Group Title
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    75=-3x

    • 3 years ago
  10. heisenberg Group Title
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    not quite. to get rid of the x on the left, subtract x to both sides. -4x - (1)x = -5x

    • 3 years ago
  11. heisenberg Group Title
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    same with the 55.

    • 3 years ago
  12. pokemon23 Group Title
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    75=-5x

    • 3 years ago
  13. heisenberg Group Title
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    what about: 25 - 55 = ?

    • 3 years ago
  14. pokemon23 Group Title
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    isn't 20

    • 3 years ago
  15. pokemon23 Group Title
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    subtract 55

    • 3 years ago
  16. heisenberg Group Title
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    it's a negative number.

    • 3 years ago
  17. pokemon23 Group Title
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    ?????????

    • 3 years ago
  18. heisenberg Group Title
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    20 - 55 = -35

    • 3 years ago
  19. heisenberg Group Title
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    you have to subtract 55 from both sides.

    • 3 years ago
  20. pokemon23 Group Title
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    where did you get -35

    • 3 years ago
  21. heisenberg Group Title
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    20 - 55 = 20 + -55 = -55 + 20 = -35

    • 3 years ago
  22. pokemon23 Group Title
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    -35=-5x

    • 3 years ago
  23. heisenberg Group Title
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    that's right.

    • 3 years ago
  24. pokemon23 Group Title
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    x=7

    • 3 years ago
  25. pokemon23 Group Title
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    ty sir?

    • 3 years ago
  26. heisenberg Group Title
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    booyah.

    • 3 years ago
  27. pokemon23 Group Title
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    lol

    • 3 years ago
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