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Solve equations by combining like terms

Grade 9 math · Fieldbook Learning

Name ______________________ Date __________

Combine the x terms on one side, then solve.

  1. Solve for x: −5x + x − 10 = 14
  2. Solve for x: −9x + 6x + 13 = 4
  3. Solve for x: −6x − 6x + 1 = −47
  4. Solve for x: 8x − 4x + 11 = 11
  5. Solve for x: 5x − 2x − 2 = 1
  6. Solve for x: x + 3x − 13 = −9
  7. Solve for x: −7x − 6x − 12 = −142
  8. Solve for x: −6x − 2x + 5 = −75
  9. Solve for x: 6x − 2x + 9 = 61
  10. Solve for x: 7x − 4x − 4 = −55
  11. Solve for x: −2x − 5x + 10 = 94
  12. Solve for x: −8x − 3x − 10 = −10
  13. Solve for x: 2x − 5x − 9 = 33
  14. Solve for x: 6x + 6x − 12 = −180
  15. Solve for x: 4x − 3x + 5 = 11
  16. Solve for x: 4x − 3x + 10 = 29
  17. Solve for x: −3x − 6x + 4 = 139
  18. Solve for x: 5x + 4x + 12 = 255
  19. Solve for x: −5x + x − 14 = −154
  20. Solve for x: 7x − x − 5 = 49
More free practice: fieldbooklearning.com/practice/grade-9/solve-equations-by-combining-like-terms/

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Answer key: Solve equations by combining like terms

  1. -6
  2. 3
  3. 4
  4. 0
  5. 1
  6. 1
  7. 10
  8. 10
  9. 13
  10. -17
  11. -12
  12. 0
  13. -14
  14. -14
  15. 6
  16. 19
  17. -15
  18. 27
  19. 35
  20. 9