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6 June, 18:21

Use an equation to solve the problem.

The difference between a number and 4 times that number is - 21. What is the number?

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Answers (2)
  1. 6 June, 20:36
    0
    N being the number, n-4=-21. n=-17
  2. 6 June, 21:20
    0
    We'll call the number 'x' for now.

    So the difference between x and 4 times x (4x) is - 21.

    x - 4x = - 21

    -3x = - 21

    x = - 21 / - 3

    x = 7.

    The number is 7.
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