Homework Help: math (this correct)

Posted by scooby9132002 on Tuesday, May 5, 2009 at 12:30pm.

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.

**What is the difference between an equation and an expression?
Equation- is a mathematical statement, in symbols, that two things are exactly the same (or equivalent). Equations are written with an equal sign. Yes, you can solve for a variable in an equation.
Example: 2+3+5=10
Expression- is a symbol or combination of symbols that represents a quantity or a relationship between quantities. No, you cannot solve for a variable in an expression. Still, you can simplify it.
Example: 3 X n +10 = when n=2
3X2+10=
6+10=
16= n
N=16

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