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14 August, 14:41

What is the solution for this system of linear equations?

{23x+4=y

4-2x=y

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Answers (1)
  1. 14 August, 15:08
    0
    We can subsitute since

    23x+4=y and

    4-2x=y

    therefor

    23x+4=y=4-2x

    so

    23x+4=4-2x

    minus 4 on both sides

    23x=-2x

    add 2x to both sides

    25x=0

    divide both sides by ... uh oh

    I guess x=0

    sub

    4-2 (0) = y

    4-0=y

    4=y

    the solution is (0,4)
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