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November 21, 2014

November 21, 2014

Posted by **Elise** on Thursday, November 13, 2008 at 4:21pm.

- Algebra -
**drwls**, Thursday, November 13, 2008 at 5:25pmYou have two different terms (3x and -5) that both multiply (4x + 5) . You can add these two terms together into (3x - 5)

You are using the "distributive" rule that

(x + y)z = xz + yz

but in this case you are using it "backwards".

x, y and z can be constants or algebraic terms

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