Math. Did I get the right answer?

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Identify the properties

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

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

  • Math. Did I get the right answer? -

    No, 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? -

    Thank you.for your help. Thank you for the website. I love it. This is a very informative site.

  • math/substituion method -

    x+3y=-6
    3x+9y=6

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