Sistemas de ecuaciones Worksheet

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Sistemas de ecuaciones Worksheet

Name: ____________________Date: ____________

Instructions: Resolución de sistemas de ecuaciones lineales por sustitución y eliminación.

20 problems

  1. x + y = 5, x − y = -1 → x = ____, y = ____
  2. x + y = 9, x − y = 1 → x = ____, y = ____
  3. x + y = 12, x − y = 4 → x = ____, y = ____
  4. x + y = 10, x − y = 0 → x = ____, y = ____
  5. 7x + 3y = 48, x = 3 → y = ____
  6. x + y = 10, x − y = -2 → x = ____, y = ____
  7. 5x + 8y = 70, x = 6 → y = ____
  8. 9x + 1y = 30, x = 3 → y = ____
  9. x + y = 7, x − y = 5 → x = ____, y = ____
  10. x + y = 14, x − y = -4 → x = ____, y = ____
  11. x + y = 9, x − y = 3 → x = ____, y = ____
  12. x + y = 15, x − y = 1 → x = ____, y = ____
  13. x + y = 9, x − y = -1 → x = ____, y = ____
  14. 4x + 2y = 26, x = 5 → y = ____
  15. 7x + 3y = 41, x = 5 → y = ____
  16. 8x + 7y = 22, x = 1 → y = ____
  17. x + y = 15, x − y = -1 → x = ____, y = ____
  18. x + y = 14, x − y = 4 → x = ____, y = ____
  19. 2x + 8y = 76, x = 6 → y = ____
  20. x + y = 10, x − y = 6 → x = ____, y = ____