math please help

Solve the system by addition.

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asked by kim
  1. 2x-4y=7
    4x+2y-1(I guess that's = 1 and not -1?)
    multiply equation 2 by 2 to obtain
    then add equation 1. Can you procedd now? The y term cancels, leaving just the x term and a number. Solve for x first.

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    posted by DrBob222
  2. please help

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    posted by Anonymous

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