1. 7th
Ch 5.2

2. Daily Warm-Up Exercises
For use with pages xxx–xxx
1) 3m m + 2𝑚 2
Terms =
Constant =
Coefficient =
Like terms =
Variable =
2) 4x 𝑥 2 + 7𝑥 2 2

3. Answers to homework

4. Ch 5.2
Standard: af 1.3 simplify numerical expressions by applying properties of rational numbers
CONNECT
BEFORE you wrote algebraic expressions. NOW you will simplify algebraic expressions.
Goals:
1.) We will identify parts of an expression.
2.) We will combine like terms.

5. Group the like terms together. Add or subtract the like terms.
Name
date
period
Combine Like Terms
Essential question: How do we combine like terms in expressions?
Steps:
Group the like terms together.
Add or subtract the like terms.
Bring everything else down.

6. 1) 3x + x – 5
2) 9y + z – 7y + 5z
3) x – 9 + x

7. 1) 9y y
2) 8x + 9z – 2x + z
12x x – 3
Describe each step you used to solve problem #3. _______________________________________________
__________________________________________________

8. 1) 9y y
2) 8x + 9z – 2x + z
12x x – 3
Describe each step you used to solve problem #3. _______________________________________________
__________________________________________________

9. 4) 5 𝑥 x – 2x + 3 𝑥 2
5) 9 𝑥 𝑥 𝑥 2 – 8 𝑥 3

10. Summary
There are ___ steps to combine like terms. First, __________________________________ . Afterwards, ____________________________ . Lastly, _________________________________ .

11. Practice
Combine like terms
8 +2x + 6x + 9
2) x + 2x + 9x

12. Practice Combine like terms 1) 5 𝑥 5 + 1 + 8 𝑥 5 + 7 𝑥 5 + 9 + 2 𝑥 3
1) 5 𝑥 𝑥 𝑥 𝑥 3
2) 4 𝑥 𝑥 𝑥 3

13. Ex 3) simplify expressions
Use the distributive property.
Combine the like terms.

14. 3a) 2(4 + x) + x
3b) -5(3y – 6) +7y
3c) 2x – 3 (6 + x)

15. Practice 3d) 5(x + 3) – 2x 3e) -6(2x – 4 ) + 8x
3f) 4(3y + 2) + 3y – 8x