1. Math Vocabulary
Like Terms
Evaluate
Area & Perimeter

2. Coefficient: The number in front of the variable.
Math Vocabulary
Coefficient: The number in front of the variable.
5 Coefficients
Example: 6x y x 1
Terms: The numbers and variables separated by addition & subtraction.
Example: 5x + 3y – 9
3 Terms
Constant: The numerical terms.
Example: -4x – 11
2 Constants

3. Combine Like Terms
You can only combine terms that are alike, or terms that have the same variable. x2 x x2 x x 6
When I combine like terms I have 2x2+ 3x +6

4. Combine Like Terms 1) 8(x + 4) +2x 2) 7x + 5(x + 2) 8x + 32 + 2x
Simplify each expression by using the Distributive Property and combining like terms.
1) 8(x + 4) +2x
2) 7x + 5(x + 2)
8x x
7x + 5x + 10
12x
+ 10
10x
+ 32

5. Combine Like Terms 3) a + 3(3 + a ) - 5 4) 8(b - 2) + 7b
Simplify each expression by using the Distributive Property and combining like terms.
3) a + 3(3 + a ) - 5
4) 8(b - 2) + 7b
a a - 5
8b b 4a
+ 4
15b
- 16

6. Evaluate PEMDAS Evaluate the variable expression if a = 3 and b = 4 1)2)
PEMDAS

7. Evaluate the expression if x = 3 and y = 4.1) 2)

8. What is the total shaded area?
Area Review
What is the total shaded area?
3 m
3 m
6 m
9 m
3 m
12 m

9. Pay attention you don’t want to miss this!
Area Review
The 2nd method involves finding an entire area and then subtracting smaller areas.
Pay attention you don’t want to miss this!

10. What is the total shaded area?
Area Review
What is the total shaded area?
3 m
3 m
9 m
6 m
3 m
12 m

11. Take Out Your Study Guide!!!
Area Review
That's all Folks!
Take Out Your Study Guide!!!
That’s all folks

12. copyright©amberpasillas2010#9
If a = 2 and b = 3
Evaluate 1) 3) 2) 4)
copyright©amberpasillas2010

13. Extra

14. Combine Like Terms #Extra
1) 7x - 4y + 2x - y 1
You can only combine terms that are alike, or terms that have the same variable. 9x
- 5y
2) 3m + 10n - 4m + 1 -m
+ 10n + 1
3) 7x + 3y
7x + 3y
4) 6a - (5a) + 2a + (-3) 3a
- 3
5) 4k - (2j) - 6k - j
-2k - 3j