**Algebra**

**Algebra- **Writing mathematical phrases using letters to represent numbers

eg. n+3 = 143x = 18

**Variable- a letter that represents a number in an equation or expression eg. n+11=20 (can be n, x, p, z, or any letter)**

**Constant- the integer in an algebraic expression or equationeg. 18+n =35**

**Expression- **Pattern (many answers)

eg. 5n

**Algebra Tiles**

**With and Without tiles**

1st: **Isolate the variable **

2nd: **Cancel the constant using zero pair**** **

3rd: **Balance (do the same thing to the other side)4th: Verify to check**

**With and without tiles.**

1st: **Isolate the variable **

2nd **Cancel the constant **

3rd: **Balance**

4th: **Simplify the variable**

5th:**Balance**

6th: **Verify**

**Correction:** those X's are all positive x's. I forgot to color it in.

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