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September 30, 2014

September 30, 2014

Posted by **Molly** on Thursday, February 7, 2013 at 7:46pm.

k so i did this: x+ (x-.90) + (x+2.20) = 12.90

how do you solve for x though... i tried doing this but i just dont understand pleese help

- Math 9 -
**Ms. Sue**, Thursday, February 7, 2013 at 7:57pmLet x = the parent's drink.

x+ (x-.90) + (x+2.20) = 12.90

Combine like terms:

3x + 1.30 = 12.90

3x = 12.90 - 1.30

3x = 11.60

x = 3.87

3.87 + 2.97 + 6.07

- Math 9 -
**Molly**, Thursday, February 7, 2013 at 7:59pmomg thank you, i was trying this too thanx:)

- Math 9 -
**Ms. Sue**, Thursday, February 7, 2013 at 8:07pmYou're very welcome.

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