WebQuest

Math Refresher

Conclusion

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EQUATIONS

In mathematics, a variable is a letter which can represent a variety of different numbers. For example:  p = 2.2k .  This can be used to convert a weight from kilograms (k) to pounds (p). Since you could substitute different numbers in for k it is called a variable. 

The formula we just looked at is called an equation because it contains an equal sign with something on both sides. 

A combination of variables and numbers using the operations of addition/subtraction, and multiplication/division without an equal sign or if there is an equal sign,without something on both sides of the equal sign, is known as an expression

If an equation had a solution that means there is a number that could be substituted in place of the variable that would balance each side of the equation. 


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