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Posted by on Friday, January 4, 2013 at 6:30pm.

When M+N=8 and 2R+N=8, what is the value of R?
A.16 B.4 C.-4 D.-8 E. It cannot be determined from the information given.

  • Math - , Saturday, January 5, 2013 at 12:45pm

    Subtract one equation from the other to get: R=M/2.
    If there is no such option, decide which answer to choose.

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