1. Do Now
M + 5 = 3
S – 4 = -7
-2 = a + 6
9y = 13.5
-5.4 = 0.3p

2. Objective: Solve two-step equations
Chapter 4 Lesson 4
Objective:
Solve two-step equations

3. An equation that has two different operations.
Two-Step Equations
An equation that has two different operations.
2x – 3 = 1

4. To solve two-step equations
Use the inverse operation to undo the whole number.
Use the inverse operation to undo the number attached to the variable.
3. Check

5. SHOW BRAIN POP VIDEO

6. Here is a model! 3x + 2 = 23 -2 -2 Check it 3(7) + 2 = 23 3x = 21 3 3
3x = 21
3 3
X = 7
Check it
3(7) + 2 = 23
= 23
23 = 23

7. Take a look at this one!
-2y – 7 = 3

8. Take a look at this one!
-11 = 4 + 5r

9. You try a few!
4y + 1 = x + 2 =26
y = x = 4

10. Try these!
24 + 9x = = 16q + 2
X = q = 3

11. Try some on your own! Sheet 4-4 do the odds.
When you are done flip the sheets upside down. We are going to test your answers using the remote controls.

12. Your homework!
Page 168 numbers 8-28 even.
Chapter 4 test
Friday