This document provides a review of solving equations. It begins with an overview of the order of operations using PEMDAS/PEDMAS. It then contrasts the difference between expressions and equations, explaining that expressions are simplified while equations are solved. The document outlines the steps to solve for a variable in an equation: simplify, combine like terms, isolate the term with the variable, and then isolate the variable. Examples are provided to illustrate these steps.

1. Algebra 1
Lessons 4.12
Solving Equations Review
HChow did it come about that

3. Think-Pair-Share

4. + + = +
- - = +
- + = -
+ - = -
Rules: - = opposite, + =

5. Order of Operations: SMOTD
How to drive a car.
Unlock the car.
Sit on the seat.
Enter key into ignition, turn.
Put on your seatbelt.
Press brake, shift to "drive."
Check mirrors.

6. P
E
MD
AS
Order of Operations:
P
E
M
D
A
S

7. PEMDAS
PEDMAS
PEMDSA
PEDMSA
HC
P
E
MD
AS

8. P
E
MD
AS
SA
DM
E
P

9. EquationsExpressions
PEMDAS SADMEPvs.
Simplify Solve
(32 + 4) 3 - 5 = -6
x
3
Example: Example:

10. Transforming
Equations

11. 3x + 5y = z
**Put answer in WITA**
Solve for y:

12. Solve = get it by itself

14. Step 1: Simplify (get rid of parenthesis)
Step 2: Combine like terms (if on same side)
Step 3: Isolate the term w/the variable (SADMEP)
Step 4: Isolate the variable (inverse ops)
How to solve for a variable:
3x + 4 = 10 3x + y = z
Solve for x: Solve for y:

15. Step 1: Simplify (get rid of parenthesis)
Step 2: Combine like terms (if on same side)
Step 3: Isolate the term w/the variable (SADMEP)
Step 4: Isolate the variable (inverse ops)
How to solve for a variable:
2x + 6 = 3x - 12
SMOTD