What is the difference between an equation and an expression? Include an example of each. Can you solve for a variable in an expression? Explain. Can you solve for a variable in an equation? Explain. Write a mathematical phrase or sentence for your classmates to translate.

Answer 1

http://answers.yahoo.com/question/index?qid=20060921092938AAVcUTT

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Answer 2

4 more than twice a number is 8