Page 188 - Math Course 2 (Book 1)

Systems of Equations: Substitution

7. y = 4x – 1 8. y = 3x + 8
y = 2x – 5 5x + 2y = 5

9. 2x – 3y = 21 10. y = 5x – 8
y = 3 – x 4x + 3y = 33

11. x + 2y = 13 12. x + 5y = 4
3x – 5y = 6 3x + 15y = –1

13. 3x – y = 4 14. x + 4y = 8
2x – 3y = –9 2x – 5y = 29

15. x – 5y = 38
2x – 10y = 20

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