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10 November, 11:12

The sum of a number and six is multiplied by - 3. The result is equal to four. What is the number?

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  1. 10 November, 11:38
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    The equation would look like this: - 3 (x + 6) = 4. Then solve to find x.

    -3x - 18 = 4 → - 3x = 22 → x = - 7.3

    You can substitute this number into the equation to check.

    -3 (-7.3 + 6) = 4 → 3.9 = 4. As you can see the number isn't exact becuase - 7.3 is a repeating decimal.
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