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April 19, 2014

April 19, 2014

Posted by **Lily** on Wednesday, June 11, 2008 at 5:37pm.

This is what I did...

2x+3+3x+1

=2x+3x+3+1

=5x+4

and

9x+11-5x+4

=9x-5x+11+4

=4x+15

but then, if I add both 5x+4+4x+15

=9x+19...

- Pre Algebra -
**Reiny**, Wednesday, June 11, 2008 at 9:56pmI think this deals with the same problem you posted at 8:49 pm

In this question I think you wanted to subract 5x+4 from 9x+11

that would be 9x+11 - (5x+4)

= 9x + 11 - 5x - 4

= 4x + 7

See how important brackets and the order of operations are ??

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