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. 3x + 3y = 39, x = 5 → y = ____
  2. x + y = 11, x − y = 3 → x = ____, y = ____
  3. 8x + 7y = 97, x = 6 → y = ____
  4. 1x + 2y = 18, x = 2 → y = ____
  5. 9x + 3y = 33, x = 3 → y = ____
  6. x + y = 7, x − y = 5 → x = ____, y = ____
  7. 4x + 9y = 33, x = 6 → y = ____
  8. 8x + 4y = 84, x = 6 → y = ____
  9. 9x + 5y = 78, x = 7 → y = ____
  10. 9x + 8y = 53, x = 5 → y = ____
  11. x + y = 10, x − y = -8 → x = ____, y = ____
  12. 2x + 7y = 55, x = 3 → y = ____
  13. 8x + 2y = 56, x = 6 → y = ____
  14. x + y = 12, x − y = 6 → x = ____, y = ____
  15. 7x + 9y = 59, x = 2 → y = ____
  16. x + y = 2, x − y = 0 → x = ____, y = ____
  17. 1x + 6y = 47, x = 5 → y = ____
  18. x + y = 7, x − y = -3 → x = ____, y = ____
  19. x + y = 12, x − y = 0 → x = ____, y = ____
  20. x + y = 11, x − y = -3 → x = ____, y = ____