1. Unit 4. Day 10.

2. Example A: 𝑆𝑜𝑙𝑣𝑒. 4𝑎 + 6 =
−12 +
Alternate form:
Familiar form: −6 −6
−18 = 4𝑎 4 4
− 18 4 = 1 𝑎
𝑎=− 18 4
− 9 2
−4 1 2 = =

3. Example B*: 𝑆𝑜𝑙𝑣𝑒.
8 = 12+ 𝑒 4
−12
−12 4 4
𝑒 4 −4 =
−16 = 𝑒

5. Example C: 𝑆𝑜𝑙𝑣𝑒.
−𝑥+7 = 3 −7 −7
− 𝑥 1 = −4 −1 −1 𝑥 = 4

6. 8−𝑦 = 5 −𝑛−3 =11 𝑆𝑜𝑙𝑣𝑒. Example D*: Example E*: Example F*:
− 2 3 𝑛+4=12
Example F*:

7. Example D*: 𝑆𝑜𝑙𝑣𝑒.
−𝑛−3 =11 +3 +3
− 𝑛 1 = 14 −1 −1 𝑛 =
−14

8. 8−𝑦 = 5 8−𝑦 = 5 8 + −𝑦 = 5 𝑦 = 3 𝑦 = 3 Example E*: 𝑆𝑜𝑙𝑣𝑒. −8 −8 −8 −8
− 𝑦 1 = −3
− 𝑦 1 = −3 −1 −1 −1 −1 𝑦 = 3 𝑦 = 3

9. − 2 3 𝑥 = 1 ∙ ∙ 𝑥 = 8 ∙ Example F*: − 3 2 − 3 2 − 24 2 − 2 3 𝑛+4=12 −4÷
− 2 3
− 2 3
− 2 3
− 24 2 1
8 1
− 3 2
− 24 2 𝑛 = ∙ = =
−12

10. Example G: Write an equation. Then solve the equation.
Mr. Jordan rented one video game and 3 movies for a total of $ The video game cost $4.75 to rent. The movies cost the same amount each to rent. What amount, in dollars, did Mr. Jordan pay to rent each movie?
11.50
4.75 3𝑚 + =
4.75+3𝑚=11.50
−4.75
−4.75 3𝑚 =
6.75 3 3 𝑚 =
2.25