Posted by **courtney** on Tuesday, September 8, 2009 at 3:49pm.

Simplify the expression.

1. 3y-(6y+2)(-y)

2. (-7x+^2)(-x)+x^2

3. 3y/2 divide by 2/7

4. -x/4 divide by 6/x

I couldn't do any of these. Please explain..

Thanks!

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