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Equations Review
Contributed by: Sukut
  • 1. 84 ÷ r = 12
A) 13
B) 17
C) 22
D) 7
E) 9
  • 2. x/10 = 5
A) 50
B) 1
C) 45
D) 19
E) 20
  • 3. Which equation is true if the varible x=2
A) 3x - 9 = 4
B) 2x + 5 = 15
C) 8x + 5 = 10
D) x + 9 =15
  • 4. Harold has one third as much money as Mark. If Harold had 25 Dollars, how much money does Mark have?
A) 400
B) 9
C) 100
D) 77
E) 75
  • 5. x - 19 = 25
A) 10
B) 6
C) 1
D) 8
E) 4
  • 6. 2x = 10
A) 4
B) 2
C) 10
D) 5
E) 20
  • 7. 36 = 9x
A) 10
B) 6
C) 9
D) 5
E) 4
  • 8. x + 31 = 41
A) 9
B) 40
C) 7
D) 10
E) 15
  • 9. 10 = 9 + b
A) 1
B) 90
C) 10
D) 2
  • 10. f - 4 = 9
A) 13
B) 4
C) 11
D) 7
E) 9
  • 11. 22 ÷ x = 11
A) 2
B) 3
C) 10
D) 1
E) 11
  • 12. y/18 = 3
A) 50
B) 15
C) 0
D) 54
E) 49
  • 13. Which equation is true if f=9?
A) 4f = 10
B) f + 2 = 8
C) 2f - 1 = 6
D) f - 4= 5
  • 14. x - 5 = 5
A) 99
B) 0
C) 6
D) 10
E) 5
  • 15. Explain what inverse operations means in your own words.
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