1. 2. 10 3. 103 4. 36 5. 6 6. 902 7. 8. 9. 10. 11. e 12. a 13. g 14. i 15. d 16. b 17. f 18. h 19. e 20. c 21. b 22. g 23. 25. If were a solution to the equation then Let’s see if it does: 24. 8(x – 3) -20 – 12 = -32 and -2(-5+21) = -2(16) = -32 Since both sides equal -32, x = -5 is a solution to the equation 4x – 12 = -2(x + 21). 26. 27. 28. cm3 = in2 = 36 + 72 + 16 124 ft2 29. 30a. 30b. mg. 31. 4x + 5 32. –x + 19 33. 5x + 7 34. 14w2 – 4w 35. simplified already 36. 37. 38. 12x + 3y 39. -123x
1. 2. 10 3. 103 4. 36 5. 6 6. 902 7. 8. 9. 10. 11. e 12. a 13. g 14. i 15. d 16. b 17. f 18. h 19. e 20. c 21. b 22. g 23. 24. 8(x – 3) 25. If were a solution to the equation then Let’s see if it does: -20 – 12 = -32 and -2(-5+21) = -2(16) = -32 Since both sides equal -32, x = -5 is a solution to the equation 4x – 12 = -2(x + 21). 26. cm3 27. = in2 28. = 36 + 72 + 16 124 ft2 29. mg. 30a. 30b. 31. 4x + 5 32. –x + 19 33. 5x + 7 34. 14w2 – 4w 35. simplified already 36. 37. 38. 12x + 3y 39. -123x
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