What do I do, I'm the HORRIBLE when it comes to math :'( I have a lot more of these but i need to learn how to do this.

1/a + 1/b = c for a

P= A/1+rt for r

I= kE/R for R

Printable View

- Mar 4th 2011, 09:29 AMmrmyers22Solve for the specified variable?
What do I do, I'm the HORRIBLE when it comes to math :'( I have a lot more of these but i need to learn how to do this.

1/a + 1/b = c for a

P= A/1+rt for r

I= kE/R for R - Mar 4th 2011, 10:00 AMQuacky

Start by removing the fractions (just multiply through by the denominators, as below):

Rearrange so that all terms involving 'a' are on one side of the equation:

Factor out an :

Divide through by the non-a factor:

Try the others yourself, it's the same principle! Post your working if you're still unable to continue. - Mar 4th 2011, 10:56 AMWilmer