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Solving Equations (addition/subtraction)
供稿人: August
  • 1. x + 3 = 2, so x = ____
  • 2. 9 = x - 4, so x = ____
  • 3. 7 + x = -10, so x = ____
  • 4. -1 = x - 6, so x = ____
  • 5. 4 + x = 8 , so x = ____
  • 6. x + 4 - 3 = 9, so x = ____
  • 7. x - (-2) = 11, so x = ____
  • 8. -1 = x - (-12), so x = ____
  • 9. 6 - (-x) = 3, so x = ____
  • 10. x + 50 = 75, so x = ____
  • 11. 100 - x = 40, so x = ____
  • 12. 500 + x = 1200, so x + ____
  • 13. -x + 10 = 5, so x = ____
  • 14. x + 9 = 18, so x + ____
  • 15. 5x = 40, so x = ____
  • 16. Lunch costs $2.50, you have $3.50 left over. How much did you have before lunch?
A) $6.00
B) $5.00
C) $6.50
D) $7.00
  • 17. For x - 7 = -19, what is the inverse operation?
A) subtract seven from each side
B) multiply each side by seven
C) none of these
D) add 7 to each side
  • 18. For x + 4 = 81, what is the inverse operation?
A) divide each side by four
B) subtract four from each side
C) none of these
D) add four to each side
  • 19. Is 9 a solution for x - 11 = -3?
A) no
B) yes
C) cannot be determined
D) none of these
  • 20. Is 10 a solution for 5 - x = -5?
A) cannot be determined
B) none of these
C) yes
D) no
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