Solve for 1/a + 1/b = c the given letter: "a"

[taf0422]

I'm completely unsure about this. It looks like it should be fairly easy but I've been looking over it for awhile now and searching the book and have found nothing. the problem is as follows.

Solve for the given letter.

1/a + 1/b = c Solve for a

Anybody know?

 

[Mrspi]

Re: Solve for the given letter

I'm completely unsure about this. It looks like it should be fairly easy but I've been looking over it for awhile now and searching the book and have found nothing. the problem is as follows.


Solve for the given letter.

1/a + 1/b = c Solve for a


Anybody know?

Maybe the problem would be easier on the eyes if it did not have any fractions in it! Multiply both sides of the equation by the common denominator for the fractions, which is ab:

ab*(1/a) + ab*(1/b) = ab*c

Now, the denominator of each fraction divides into the multplier, eliminating the fraction and leaving you with this:

b*1 + a*1 = ab*

or,

b + a = ab

Now proceed.....

 

[Loren]

Re: Solve for the given letter

I believe Mrspi made a typo by leaving out the "c".
I think she meant "b*1 + a*1 = ab*c".

 

[Denis]

Re: Solve for the given letter

I believe Mrspi made a typo by leaving out the "c".

1st mistake this year, I believe