1. Unit 6 Review 1.
y = -2x - 4
y = 2x + 12

2. Unit 6 Review 2.
y = 2x + 6
y = -4x - 12

3. Unit 6 Review 3.
-2x + y = 1
2x - 8y = -22

4. 4.
7x + 6y = 9
3x + y = 7

5. Unit 6 Review 5.
3x - 5y = 9
-4x + 5y = -7

6. Unit 6 Review 6.
2x - y = -8
-4x + y = 14

7. Unit 6 Review 7.
-6x - 8y = 14
7x - 16y = 9

8. Unit 6 Review 8.
-7x - 12y = -17
2x + 6y = 10

9. 9.

10. 10.

11. 11.
Jenny and Chelsea are selling cheesecakes for a school fundraiser. Customers can buy pecan cheesecakes and chocolate marble cheesecakes. Jenny sold 3 pecan cheesecakes and 2 chocolate marble cheesecakes for a total of $69. Chelsea sold 3 pecan cheesecakes and 5 chocolate marble cheesecakes for a total of $114. What is the cost each of one pecan cheesecake and one chocolate marble