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December 19, 2014

December 19, 2014

Posted by **Ellie** on Sunday, November 23, 2008 at 9:14pm.

9+(x-4)

5-4x-5/-4

4(3x-2y)-3(4x-3y)

7(r+s)-(r-s)

3y-2(x-2y)

Thank you so much for your help.

Ellie

- Math -
**drwls**, Monday, November 24, 2008 at 3:55amMultiply each term in parentheses by the coefficient in front of it, and then combine constants and "x" and "y" terms separately

For example,

9 + x - 4 = x + 5

(You don't even have to do a distributive multiplication on that one)

3y -2(x-2y) = 3y - 2x + 4y = 7y - 2x

You try the others.

Your second expression needs parentheses to show us what the mumerator is.

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