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When simplifying expressions, you should group the similar terms together. That means all the "x" terms are grouped together, and all the integers are grouped together. You should get this:

(-3x-6x) -1.

*Note: remember that the negative sign in front of (6x+1) gets distributed to both terms, so it becomes -6x -1 !!

Now, you simplify further to get -9x -1.

Please let me know if you need any clarification. I'm always happy to answer your questions. Good luck!

Sep 21st, 2015

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