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22 September, 12:50

Find 3 + (-9) should you add or subtract 3 and 9? Why?

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  1. 22 September, 12:58
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    For 3 + (-9), you should subtract 9 from 3. When you add a negative number it's the same thing as just subtracting said number. So, to solve this problem, you would change 3 + (-9) to 3 - 9, which is - 6.
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