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August 31, 2015
Posted by **some girl** on Friday, September 14, 2012 at 6:24pm.

I know that x=8 but how did you get it

Thanks

- 6th grade math -
**Ms. Sue**, Friday, September 14, 2012 at 6:34pm9 + x = 17

Subtract 9 from both sides of the equation.

9 - 9 + x = 17 - 9

x = 8

Remember -- you need to get the known quantities on one side and the unknown on the other side.

- 6th grade math -
**some girl**, Friday, September 14, 2012 at 6:38pmthanks so much!

- 6th grade math -
**Ms. Sue**, Friday, September 14, 2012 at 6:39pmYou're very welcome.