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21 January, 05:12

When 20 is reduced by two thirds of a number the result is 12 what is the number

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Answers (2)
  1. 21 January, 05:34
    0
    The equation would be something like

    20 - 2/3x = 12

    so times it by 3 to get rid of the demoninator

    60 - 2x = 36

    rearrange

    -2x = 36 - 60

    solve

    -2x = - 24

    so

    x = 12
  2. 21 January, 05:35
    0
    The number is 12, if you split it into 3 parts you get 4 so 2/3 of it would be 8. then you just take 20 ans subtract 8 to get 12.
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