Posted by **some girl** on Friday, September 14, 2012 at 6:35pm.

9 + x = 17

I know that x=8 but I don't know how you figure it out

- 6th grade math (please please answer!) -
**Ms. Sue**, Friday, September 14, 2012 at 6:37pm
Please see my answer below.

- 6th grade math (please please answer!) -
**Fiona**, Saturday, September 15, 2012 at 10:41pm
because it is an equation, what you do to one side you must do to the other. In this case you are looking for what 'x' is, that is why it is labeled "x" because it is unknown. To find 'x' you must subtract 9 from the left side and then you must subtract 9 from 17 on the right side. You do this because in an equation, what you do to one side, you do to the other.

the final answer is: x= 8 because 17-9 equals 8.

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