7.4 HW Answers
7.4 HW Answers. (4, -1). (19, 16). 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. (5, 3). (5, 6). (-½, -2). (-7, -12). (9, -3). (2, 1). (-10, -5). (4, 4). 10x + 2y = 155. 12x + 3y = 189. $14.50 balls. $5 bags. (-2, -2). x = -19 + 9. x = -10. 5(y + 9) – 3y = 7. y = -19. (-10, -19).
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