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September 20, 2014

Posted by **ann** on Sunday, November 13, 2011 at 10:07am.

[-13]- [13]

= -13 - 13

= -26

thanks

- algebra -
**PsyDAG**, Sunday, November 13, 2011 at 11:14amFrom your information, I don't see an error. May the error is asking you to describe one.

- algebra -
**Annie**, Sunday, November 13, 2011 at 11:21amwait. are the brackets around the numbers saying to find their absolute value, or is that just ot seperate them?

- algebra -
**PsyDAG**, Monday, November 14, 2011 at 12:50amAbsolute numbers are not indicated by brackets "[]" but by straight lines "II".

I-13I - I13I = 0

(The vertical lines should be longer, but I don't know how to print them on the computer.)

- algebra -
**ann**, Monday, November 14, 2011 at 8:16pmthanks they were straight lines so I am going with 0 thanks

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