1. 2.3 Solving multi-step equations
I can solve multi-step equations in one variable.

2. Combine like terms within parentheses Distribute (if necessary)
Here’s the process
Combine like terms within parentheses
Distribute (if necessary)
Undo (use inverse operations)
Continue combining like terms as you go!

3. Some examples
5 = 5m – m
Combine like terms
5 = 7m – 23
Undo
28 = 7m
4 = m
**notice that there was no distributing to be done so we skip this step.

4. No like terms to combine Distribute the negative 4 – 3 + x = 15
Some examples
4 – (3 – x) = 15
No like terms to combine
Distribute the negative
4 – 3 + x = 15
1 + x = 15
Undo
x = 14

5. practice
11m – 8 – 6m = 22
3.5 – 0.02x = 1.24
3𝑥 4 − 𝑥 3 =10
-8(2x – 1) = 36

6. Writing and solving a multi-step equation
Martha takes her niece and nephew to a concert. Her niece wants 1 shirt and 4 bumper stickers, and her nephew wants 2 shirts. Bumper stickers are $1 each. Martha spends $67. How much does a shirt cost?
(s + 4) + 2s = 67
s = 21, shirts are $21 each

7. Assignment
ODDS ONLY
P.98 #11-33, 39-55