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28 December, 19:29

The sum of negative eighteen and a number is eleven. What is the number?

Which equation could be used to solve the problem?

x - 18 = 11

18 - x = 11

-x + 18 = 11

x + 18 = 11

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Answers (1)
  1. 28 December, 19:59
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    The sum of negative eighteen and a number is eleven (sum means to add)

    The sum of - 18 and a number is 11 (number is x)

    The sum of - 18 and x is 11

    -18 + x = 11

    x + (-18) = 11

    x - 18 = 11

    answer
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