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April 18, 2015

April 18, 2015

Posted by **GGIFT** on Wednesday, March 10, 2010 at 6:38am.

6/z+8 = 5/z-3?

do i first find the lcd?

- ALGEBRA -
**drwls**, Wednesday, March 10, 2010 at 7:50amI will assume that you mean

6/(z+8) = 5/(z-3)

Parentheses are very important when you write equations on a single line, as here.

Cross multiply to get

6z - 18 = 5z + 40

Now combine terms

z = 58

You could look for an LCM, but that step is not necessary. The answer would be the same.

- ALGEBRA -
**GGIFT**, Wednesday, March 10, 2010 at 12:42pmMaybe I wrote the problem wrong...

6 = 5

z+8 4+x

is that the same as what i put earlier?

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