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September 19, 2014

September 19, 2014

Posted by **johnnie** on Saturday, February 21, 2009 at 2:18pm.

-6-(-2)=8 is this right I get confused.

add. -5/14+9/7=-14/21

- alegebra -
**drwls**, Saturday, February 21, 2009 at 2:50pmNo to your first question.

-6-(-2)= -6 + 2 = __

No to your second question, also.

The common denominator to use is 14.

-5/14 + 9/7 = -5/14 + 18/14 = (18-5)/14

= 13/14

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