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Simple maths question

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  • 14-04-2013 10:56am
    #1
    TooMuchStudy
    Registered Users Posts: 82 ✭✭


    Was just looking at an exam solution in the leaving certificate and it looks easy but could someone tell me why g=3f?

    asdasdasd.png

    thanks


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    #2
    BeanbagBallbag
    Registered Users Posts: 181 ✭✭BeanbagBallbag


    If you subtract the second equation from the first, you are left with

    -4g + 12f = 0

    Hence, g=3f, hope that helps!


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    #3
    TooMuchStudy
    Registered Users Posts: 82 ✭✭TooMuchStudy


    BeanbagBallbag wrote: »
    If you subtract the second equation from the first, you are left with

    -4g + 12f = 0

    Hence, g=3f, hope that helps!

    Ah yes, I knew it was something really simple, just couldn't see it.
    Thanks a lot!


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