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Posted by on Sunday, May 27, 2012 at 8:31pm.

a + 7b = 7
a + 2b = -3

  • Math - , Sunday, May 27, 2012 at 9:19pm

    If you are solving, just subtract them to get
    5b = 10
    b = 2
    sub back into the 1st to get a

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