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August 21, 2014

August 21, 2014

Posted by **norma** on Sunday, July 4, 2010 at 7:41pm.

Notice the vertical bars enclosing the expression

can anyone help me.

- algebra -
**Damon**, Sunday, July 4, 2010 at 7:46pm|2+5+(-11)+4|

| 7-11+4 |

|11-11|

0

The absolute value of + or - zero is 0

- algebra -
**norma**, Sunday, July 4, 2010 at 7:50pmThank you

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