Prep · Multi-step equations

1. 1.

   Solve 2x + 6 = 24.

   Answer. x = 9

   Subtract 6: 2x = 18. Divide by 2: x = 9.

2. 2.

   Solve 6x + 6 = 42.

   Answer. x = 6

   Subtract 6: 6x = 36. Divide by 6: x = 6.

3. 3.

   Solve 3x + 8 = 14.

   Answer. x = 2

   Subtract 8: 3x = 6. Divide by 3: x = 2.

4. 4.

   Solve 4x + 4 = 28.

   Answer. x = 6

   Subtract 4: 4x = 24. Divide by 4: x = 6.

5. 5.

   Solve 3x + 2 = 14. Write a complete answer — Sam will compare with a partner.

   Answer. x = 4

   Subtract 2: 3x = 12. Divide by 3: x = 4.

6. 6.

   Solve 3x + 8 = 23. Write a complete answer — Owen will compare with a partner.

   Answer. x = 5

   Subtract 8: 3x = 15. Divide by 3: x = 5.

7. 7.

   Solve 5x + 2 = 37. Write a complete answer — Ava will compare with a partner.

   Answer. x = 7

   Subtract 2: 5x = 35. Divide by 5: x = 7.

8. 8.

   Solve 2x + 6 = 14. Write a complete answer — Elena will compare with a partner.

   Answer. x = 4

   Subtract 6: 2x = 8. Divide by 2: x = 4.

9. 9.

   Solve 6x + 2 = 44. Write a complete answer — Malik will compare with a partner.

   Answer. x = 7

   Subtract 2: 6x = 42. Divide by 6: x = 7.

10. 10.

    Solve 6x + 7 = 43. Write a complete answer — Ava will compare with a partner.

    Answer. x = 6

    Subtract 7: 6x = 36. Divide by 6: x = 6.

11. 11.

    Think

    Sam tried this problem:
    Solve 4x + 4 = 20.
    Sam wrote x = 5. That is not correct. What is the right answer?

    Answer. x = 4

    Sam’s answer x = 5 is off. Subtract 4: 4x = 16. Divide by 4: x = 4.

12. 12.

    Think

    Owen tried this problem:
    Solve 6x + 2 = 14.
    Owen wrote x = 3. That is not correct. What is the right answer?

    Answer. x = 2

    Owen’s answer x = 3 is off. Subtract 2: 6x = 12. Divide by 6: x = 2.

Original extra practice. Keys are computed from the items, not guessed.