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Evaluate linear expressions with positive values

Year 8 maths · Fieldbook Learning

Name ______________________ Date __________

Replace each letter with its value. Put parentheses around negative values.

  1. Evaluate −3x + 1 when x = 4.
  2. Evaluate x − 5 when x = 2.
  3. Evaluate −3x + 2 when x = 2.
  4. Evaluate −3x + 3 when x = 1.
  5. Evaluate 5x + 5 when x = 2.
  6. Evaluate 8x + 9 when x = 2.
  7. Evaluate −8x − 2 when x = 10.
  8. Evaluate 9x + 5 when x = 10.
  9. Evaluate 8x + 5 when x = 4.
  10. Evaluate −11x + 6 when x = 4.
  11. Evaluate 5x + 4 when x = 8.
  12. Evaluate −4x + 2 when x = 9.
  13. Evaluate x + 10 when x = 17.
  14. Evaluate −4x − 2 when x = 5.
  15. Evaluate 8x − 7 when x = 16.
  16. Evaluate 7x + 14 when x = 8.
  17. Evaluate −18x + 13 when x = 3.
  18. Evaluate 20x + 12 when x = 15.
  19. Evaluate −7x − 13 when x = 7.
  20. Evaluate −9x + 16 when x = 13.
More free practice: fieldbooklearning.com/uk/practice/year-8/evaluate-linear-expressions-with-positive-values/

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Answer key: Evaluate linear expressions with positive values

  1. -11
  2. -3
  3. -4
  4. 0
  5. 15
  6. 25
  7. -82
  8. 95
  9. 37
  10. -38
  11. 44
  12. -34
  13. 27
  14. -22
  15. 121
  16. 70
  17. -41
  18. 312
  19. -62
  20. -101