Review+Chapter+8


 * Chapter Check **

Use algebra tiles or drawing to model the following equations. 1. x + 2 = 5 2. x - 1 = 3 3. x + 4 = 6 4. x - 3 = 4

Solve. 5. n + 3 = 6 6. w + 5 = 9 7. x + 7 = 12 8. y + 6 = 6

9. m - 3 = 7 10. b - 5 = 6 11. w - 15 = 25 12. y - 2 = 8

13. 3x = 9 14. 12v = 24 15. 10z = 100 16. 9t = 81

17. p/5 = 3 18. q/5 = 4 19. n/6 = 5 20. x/4 = 8

Solve these equations. 21. y + 3.1 = 4.7 22. x - 1.6 = 2.4 23. s/6 = 1.8 24. 4p = 6.4 25. b + 2.2 = 8.1 26. v/4 = 3.5 27. y - 11.5 = 1.5 28. g + 7 = 8.2 29. r - 7 = 9.5 30. m + 6 = 14.2

Write an equation for each sentence. 31. A number increased by 12 is 15. 32. One quarter of a number is 3. 33. The product of a number and 7 is 35. 34. A number decreased by 8 is 4. 35. A number divided by 12 is 3.

Write each of the following equations in words. 36. 3t = 9 37. q + 5 = 7 38. y - 8 = 5 39. w/7 = 3

Write and solve an equation for each problem. 40. At the 15th Commonwealth Games in Victoria, British Columbia, the number of silver medals won by South Africa was half the number of bronze medals it won. If South Africa won 4 silver medals, how many bronze medals did it win?

41. Murray has $3.00 more than Petra. Murray has $12.00. How much does Petra have?

42. There are 115 provincial parks in Alberta. This number is 32 less than the number of provincial parks in Manitoba. How many provincial parks does Manitoba have?

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