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February 27, 2015

February 27, 2015

Posted by **Olivia** on Monday, October 19, 2009 at 7:07pm.

-5(-3n+4)-12=13

- 8th grade -
**Ms. Sue**, Monday, October 19, 2009 at 7:10pm-5(-3n+4)-12=13

15n - 20 - 12 = 13

15n - 32 = 13

15n = 13 + 32

15n = 45

n = ?

- 8th grade -
**jim**, Monday, October 19, 2009 at 7:11pm-5(-3n+4)-12=13

Add 12 to both sides:

-5(-3n+4)=25

Divide across by 5:

3n - 4 = 5

Add 4 to both sides:

(you fill this in)

Finally, divide across by 3:

(you fill this in too!)

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