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Lv 4
? asked in Science & MathematicsMathematics · 9 years ago

How do I isolate "c" in this equation?

the equation is:

a=b(1/c - 1/d)

i have to get it so that it's in the form

c=

also it says the first step is to divide both sides by "b"

3 Answers

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  • Dale
    9 years ago

    The first answer was correct, but if you divide by b first you get:

    a/b=1/c - 1/d,

    ca/b+ c/d = 1

    (c)(a/b +1/d) = 1

    c = 1/(a/b + 1/d)

  • Anonymous
    9 years ago

    a=b(1/c - 1/d)

    Divide both sides by b:

    a/b = 1/c - 1/d

    b/a =c-d

    b/a - c =-d

    -c = -d + b/a

    c = d - b/a

  • ?
    Lv 5
    9 years ago

    a=b(1/c-1/d)

    a/b=1/c-1/d

    ac/b=1-c/d

    ac/b+c/d=1

    c(a/b+1/d)=1

    c=1/(a/b+1/d)

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