1. Multi Step Equations 1.) 3a + 2 + a 2.) 4.3(5.6 + c) + 9c
Combine the following terms
1.) 3a a
2.) 4.3(5.6 + c) + 9c
3.) n + 4n - 3
4.) -5b - 2(b - 1)

2. Go over Homework pg 268 #8-28 evens Pg 294 #6-8 even
Practice Sheet 6-3 evens (rest e.c.)

3. Section 6-3 Multi Step Equations
To write and solve multi step equations

4. Two Goals
The goal in solving a Multi-step equation is to have only variables on one side of the equal sign and numbers on the other side of the equal sign. The other goal is to have the number in front of the variable (aka coefficient) equal to a positive one.
7n = -7
n = -1

5. 3n + 9 + 4n = 2 7n + 9 = 2 7n + 9 = 2 -9 -9 7n = -7 / 7 / 7 *7 -9
Step 1 => Combine Like Terms
7n + 9 = 2
Step 2 => Use Do/Undo to solve the variable
Do Undo
7n + 9 = 2 -9 -9
7n = -7
/ 7
/ 7 *7 -9
n = -1
/ 7 +9

6. 4 ( m + 3) = - 32
Step 1 => Use Distributive Property
4m + 12 = - 32
Step 2 => Use Do/Undo to solve the variable
4m + 12 = - 32
-12
-12
4m = - 44
/ 4
/ 4
Do Undo
m = - 11
* 4
-12
+12
/ 4

7. 15 = -3(c-1) + 9 15 = -3c + 3 + 9 15 = -3c + 12 -12 -12 /-3 /-3 *-3
Step 1 => Use Distributive Property
15 = -3c
Step 2 => Combine Like Terms
15 = -3c + 12
Step 3 => Use Do/Undo to solve the variable
15 = -3c + 12
-12
-12
Do Undo
3 = -3c
/-3
/-3
*-3
-12
/-3
+12
-1 = c rewrite as c=-1

8. 1.5 – 0.25(a + 4) = 3 + 3(0.05 – 0.5a)
Step 1 => Use Distributive Property
1.5 – 0.25a - 1 = – 1.5a
Step 2 => Combine Like Terms
.5 – 0.25a = 3.15 – 1.5a
Step 3 => Get variables on one side (make sure the variable is positive)
.5 – 0.25a + 1.5a = 3.15 – 1.5a + 1.5a
a = 3.15

9. Step 3 => Get variables on one side
Step 4 => Use Do/Undo to solve the variable
a = 3.15
Do Undo
- 0.5
- 0.5
* 1.25
- 0.5
1.25a = 2.65
+ 0.5
/ 1.25
/ 1.25
/ 1.25
a = 2.12

10. Homework
Pg & even
MUST show work, do not have to do do/undo chart unless you want to.
MUST see steps for distributive and combining like terms

14. sssuc.weebly.com Go to C3 Ch6 Tab
In pairs of two only, using white boards do the rags to riches game.
Before the class is over
If you win the game you have no homework
Show me that you won it, or you’ll have to do the game again
If you lose the game you have homework
Practice Sheet 6-3 evens only
Keep playing until you win or class is over.