**Variable**- a letter that represents a number in an equation or expression

ex. n,x,p,z

**Constant**- the integer in algebra

ex.

**Equation**- only one possible answer. includes an equal sign -

**=**

ex. 2x=6

**Expression**- a pattern many possible answers

ex. 2x

Algebra tiles

**How to solve one step algebra**

**1.**Isolate the variable

**2.**Cancel using the opposite

-make a zero pair with the constant

**3.**Balance the equation

**4.**Verify

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**How to solve two-step equations**

**1.**Isolate

**2.**Cancel constant

**3.**Balance

**4.**Simplify the variable

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