NAME:________________________________________________________
PER:____________
Problems of the day
1.
2.
3.
4.
If there are 3 apples and we add 2 more apples to it then how many apples do we have? _____________
If there are 3 apples and we add 2 more oranges then how many apples do we have?____________
If there are 3x and we add 2x then how many x’s do we have? ________________
If there are 3x and we add 2y then how many x’s do I have? ---------------------------------------
Essential Questions?
What does it mean to combine like terms?
1. How do I simplify an expression with more than one
variable?
Vocabulary
Like terms – Terms that have the exact same variable(s) raised to the same power
Combine like terms – The process of adding or subtracting like terms together.
Simplify – The process of combining like terms until it is in the simplest form.
Simplify each expression
Example 1 (I’ve already used the shape method for
this particular problem!) :
Example 2:
2x + 3y
Example 4: 3a + 2ab - 7 + 5b +2a - 6b – 6ab + 3
Example 3:
3x + 1 - x + 2
***NOTE*** “ab” is different from just “a”
or “b” by itself. It is in fact a combination of
the two, which means it can only be added
to OTHER combinations of the two!
NAME:________________________________________________________
PER:____________
Combining Like Terms Practice
1. 6d – e + 3d – 2e
2. 3 + 2c + 5c + 2
3. 2a + 3b – 5b +7a
4. 6c – 7 + d + 4 – 6d
5. b – 3n + 12 – 6b + 2n
6. 9c – 4 -13c + 6
7. 23 + 8m + 4n – 5m – 27
8. 8x – 2y + 3x + 5y
9. 11a – 3b + 6a – 7b
10. 7 + 2y – 8x
11. 7x – 5y – 4x + 3y
12. 7 – 5c – d + 9c + 2
13. What are like terms?
14. How do you gather like
terms?
15. How do you know when
you are finished
gathering like terms?
NAME:________________________________________________________
Name: _____________________________
Lesson #3 Introduction
PER:____________
Gathering Like Terms
Homework
1. 5a + 2b – 5b + 9a
2. 2c – 3 + 9d +7 – 6d
3. j – 4k + 7 + 2j – 3k
4. 4c + 7 – 3c + 8
NAME:________________________________________________________
PER:____________