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