SOLUTION: I'm having trouble with this one!! 1/a + 1/b = c "solve for a"

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Question 218735: I'm having trouble with this one!!
1/a + 1/b = c "solve for a"
Answer by drj(1380) About Me  (Show Source):
You can put this solution on YOUR website!
1%2Fa+%2B+1%2Fb+=+c "solve for a"

Step 1. Subtract 1/b from both sides of the equation

1%2Fa+%2B+1%2Fb-1%2Fb+=+c-1%2Fb

1%2Fa=c-1%2Fb

Step 2. Take the reciprocal of both sides of the equation and simplify where a=1%2F%281%2Fa%29

a=1%2F%28c-1%2Fb%29

a=1%2F%28%28cb-1%29%2Fb%29

a=b%2F%28cb-1%29

Step 3. ANSWER IS a=b%2F%28cb-1%29

I hope the above steps and explanation were helpful.

For Step-By-Step videos on Introduction to Algebra, please visit http://www.FreedomUniversity.TV/courses/IntroAlgebra and for Trigonometry please visit http://www.FreedomUniversity.TV/courses/Trigonometry.

Also, good luck in your studies and contact me at john@e-liteworks.com for your future math needs.

Respectfully,
Dr J

http://www.FreedomUniversity.TV