# Lesson 3.2 Simplifying Expressions

The student will be able to simplify an algebraic expression

# Opening

- 20/25 is simplified to 4/5. Why do we simplify fractions?
- If I had an expression j+j, how could you write that in a simpler way? (think multiplication)

# Lesson

- Combining like terms- bringing together similar parts of an expression

2*j* + *j* + 7 + 12

5*y* + 16 - *y*

10*r* - 5 + 3 + *r*

*X* x *X* + 7 - 2

3(12*y* + 9)+5

# Still Confused?

**Khan Academy**-Expression terms, factors and coefficients