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 #1
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+5

http://web2.0calc.com/ Works for me! Try again!

Sep 7, 2014
 #4
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Yes. Like I said. You can go to the following link

http://www.mathsisfun.com/definitions/variable.html 

Or------

The letter x can be any number. It can be 1, 3, 2, 4, etc., so, is there an equation or an expression?

Sep 7, 2014

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