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Math Help - make Unknown variable subject and find its value,

  1. #1
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    make Unknown variable subject and find its value,

    Hi could some one help me out to find the value of T(and help me rearrange)
    Last edited by wolfhound; October 18th 2009 at 04:00 AM.
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  2. #2
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    Quote Originally Posted by wolfhound View Post
    Hi could some one help me out to find the value of T(and help me rearrange)

    make t subject,a=-2 b=3

    3at + 2(b-t)=4t + 5
    3at + 2b -2t=4t +5
    -4t-2t + 3at= -2b + 5
    \color{red}-6t + 3t=-2b+5/a
    {red}-3t/-3=-2b+5/a-3
    t=6+5/-2-3
    t=-11/5
     -4t-2t + 3at= -2b + 5
     -6t + 3at=  5-2b
     t(-6+3a)= 5-2b
     t=\frac{5-2b}{-6+3a}=\frac{5-2b}{3a-6}=\frac{5-2(3)}{3(-2)-6}=\frac {1}{12}
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  3. #3
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    Quote Originally Posted by ramiee2010 View Post
     -4t-2t + 3at= -2b + 5
     -6t + 3at=  5-2b
     t(-6+3a)= 5-2b
     t=\frac{5-2b}{-6+3a}=\frac{5-2b}{3a-6}=\frac{5-2(3)}{3(-2)-6}=\frac {1}{12}
    Thanks for your quick reply friend
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