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Math Help - solve linear equation help...

  1. #1
    Senior Member
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    solve linear equation help...

    make x subject(in terms of a and b)

    4a/6 +3(x-4)=ax+b
    4a +18(x-4)=6ax+6b
    4a+18x-72=6ax+6b
    18x=6ax+6b+72-4a
    6ax+6b+72-4a/x=17x??
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  2. #2
    MHF Contributor
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    Quote Originally Posted by wolfhound View Post
    make x subject(in terms of a and b)

    4a/6 +3(x-4)=ax+b
    4a +18(x-4)=6ax+6b
    4a+18x-72=6ax+6b
    18x=6ax+6b+72-4a ***
    6ax+6b+72-4a/x=17x??
    HI

    *** continuing from here ,

    18x-6ax=6b+72-4a

    x(18-6a)=6b+72-4a

    x=\frac{6b+72-4a}{18-6a}

     <br />
=\frac{3b+36-2a}{9-3a}<br />
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  3. #3
    Senior Member
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    Thank you

    excellent,thanks for your quick reply
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