- 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 + ____
- 16. Lunch costs $2.50, you have $3.50 left over. How much did you have before lunch?
A) $6.50
B) $5.00
C) $6.00
D) $7.00
- 17. For x - 7 = -19, what is the inverse operation?
A) multiply each side by seven
B) subtract seven from each side
C) add 7 to each side
D) none of these
- 18. For x + 4 = 81, what is the inverse operation?
A) add four to each side
B) divide each side by four
C) subtract four from each side
D) none of these
- 19. Is 9 a solution for x - 11 = -3?
A) yes
B) cannot be determined
C) no
D) none of these
- 20. Is 10 a solution for 5 - x = -5?
A) no
B) cannot be determined
C) none of these
D) yes
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