Anonymous
Anonymous asked in Science & MathematicsMathematics · 1 decade ago

I=E/(R+r) solve for R?

solve for R

2 Answers

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  • 1 decade ago
    Best Answer

    I=E/(R+r)

    multiply both sides of the equations by (R+r):

    I(R+r)=E

    divide both sides of the equation by I:

    (R+r)=E/I

    subtract r from both sides of the equation:

    R=(E/I) - r

    *Note: lol wise guy..you were still right in your first answer..it still came out the same. But follow my lead of course :)

  • 1 decade ago

    I=E/(R+r)

    multiply both sides by (R+r)

    I(R+r) = E

    divide by I

    R+r = E/I

    subtract r

    R = E/I - r

    ^_^

    M4tr!x -

    Yeah, but I added a lot of unnecessary steps, I was just having a brainfart, so I made it simpler

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