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math

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solve the system of equations

2x-y=4 and 4x+y=2

Thanks.

  • math -

    Your teacher should have given you what X= alternativly what Y= then you should work out what either X or Y stands for. Take your first equation for example..

    2x-y=4
    Q. IF X EQUALS 2 WHAT IS Y?
    Substitute x with four
    2(2)-y=4
    Now times 2 by the number in the brackets
    2x2=4
    so the equation now reads
    4-y=4
    in this case
    Y=zero

    remember this is just an example! Insert the value of Y or X into your equations and work it out!

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