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January 31, 2015

January 31, 2015

Posted by **BWB** on Saturday, April 17, 2010 at 4:18pm.

( 5 + 3) + 4 = ( 3 + 5) + 4 = Communitive property

( 3 × 2) × 8 = 3 × ( 2 × 8) = associative property

- Math. Did I get the right answer? -
**bobpursley**, Saturday, April 17, 2010 at 4:39pmNo, both of these are wrong.

The first is associative, the second is communicative.

http://www.purplemath.com/modules/numbprop.htm

- Math. Did I get the right answer? -
**BWB**, Saturday, April 17, 2010 at 5:14pmThank you.for your help. Thank you for the website. I love it. This is a very informative site.

- math/substituion method -
**bob**, Tuesday, March 1, 2011 at 8:00pmx+3y=-6

3x+9y=6

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