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Math Help - how do i solve this kind of math problem?

  1. #1
    Newbie
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    Sep 2010
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    how do i solve this kind of math problem?

    hi

    does anyone know how to solve these kind of maths problem

    12/r1 = x+0.29
    12/r2 = x+0.19
    12/(r1+r2) = x

    please help. and also if possible tell me these kind of question what is the name of the way to solve.

    i seems to see alot of these kind of problem lately
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  2. #2
    Senior Member yeKciM's Avatar
    Joined
    Jul 2010
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    Quote Originally Posted by neonick View Post
    hi

    does anyone know how to solve these kind of maths problem

    12/r1 = x+0.29
    12/r2 = x+0.19
    12/(r1+r2) = x

    please help. and also if possible tell me these kind of question what is the name of the way to solve.

    i seems to see alot of these kind of problem lately
    just put that  x= \frac {12}{r_1+r_2 } in first and second equation, than just solve 2 equations with 2 unknowns ...
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