1. Solve using the addition principle. m - 3 = 5 A) 2 B) -2 C) 8 D) -8 2. Solve using the addition principle. s + 5 = 8 A) -3 B) 13 C) 3 D) -13 3. Solve using the addition principle. x - = 0 A) - 9 B) 9 C) D) - 4. Solve using the addition principle. 8 = z + 3 A) -11 B) 11 C) 5 D) -5 5. Solve using the addition principle. 22 = a - 13 A) -35 B) 9 C) 35 D) -9 6. Solve using the addition principle. x - 16.31 = 0 A) 15.31 B) 16.31 C) -15.31 D) -16.31 7. Solve using the multiplication principle. = -3 A) -10 B) 0 C) 21 D) -11 8. Solve using the multiplication principle. 9 = A) -2 B) 3 C) 4 D) -45 9. Solve using the multiplication principle. = 13 A) 2 B) 17 C) 65 D) 18 10. Solve using the multiplication principle. -5a = 15 A) 20 B) -20 C) 1 D) -3 11. Solve using the multiplication principle. -45 = 9k A) -5 B) 1 C) 54 D) -54 12. Solve using the multiplication principle. -44.1 = -6.3c A) -37.8 B) 37.8 C) 7.0 D) 2.0 13. Solve using the multiplication principle. -5x = -20 A) 15 B) 2 C) -15 D) 4 14. Solve the equation. 4r + 3 = 19 A) 12 B) 16 C) 1 D) 4 15. Solve the equation. 10n - 10 = 50 A) 6 B) 15 C) 54 D) 50 16. Solve the equation. 55 = 10x - 5 A) 6 B) 50 C) 10 D) 54 17. Solve the equation. 57 = 5x + 7 A) 4 B) 45 C) 49 D) 10 18. Solve the equation. 159 = 11x + 16 A) 136 B) 132 C) 13 D) 1 19. Solve the equation. 96 = 12x + 4x A) B) 112 C) 6 D) 80 20. Solve using the multiplication principle. x = 30 A) B) 36 C) D) 25 Solution 1)c 2)c 3)B 4)C .