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December 22, 2014

December 22, 2014

Posted by **Jeannie** on Sunday, March 20, 2011 at 12:41pm.

How do combination of signed numbers work? I keeping getting 6 but for some reason I don't think its right.

-1-(-6+-1)

-1-6+1

-5+1=6

- Algebra -
**PsyDAG**, Monday, March 21, 2011 at 12:12pmYour notation is confusing; is the last 1 negative or positive?

-1 - (-6) + (-1) = -1 + 6 -1 = 4

-1 - (-6-1) = -1 - (-7) = -1 + 7 = 6

-1 - (-6+1) = -1 -(-5) = -1 + 5 = 4

Remember that a negative times a negative = a positive. Do operations within parentheses first.

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