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Posted by on Tuesday, January 31, 2012 at 10:32pm.

im really confused about this question:

2x-3y=21 y=3-x

using substitution method. please help

  • Algerbra 1 substitution method - , Tuesday, January 31, 2012 at 10:46pm

    2x - 3(3-x) = 21

    Solve for x, then y.

  • Algerbra 1 substitution method - , Thursday, February 2, 2012 at 6:24pm

    2x+y=3
    x+2y=0

  • Algerbra 1 substitution method - , Thursday, February 9, 2012 at 7:52pm

    X=2 Y=-1
    (2,-1)

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