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 = 7, x − y = 3 → x = ____, y = ____
  2. 2x + 1y = 14, x = 5 → y = ____
  3. x + y = 14, x − y = -4 → x = ____, y = ____
  4. x + y = 3, x − y = 1 → x = ____, y = ____
  5. 4x + 4y = 28, x = 3 → y = ____
  6. 1x + 2y = 15, x = 1 → y = ____
  7. x + y = 6, x − y = 2 → x = ____, y = ____
  8. 1x + 6y = 55, x = 7 → y = ____
  9. 6x + 8y = 34, x = 3 → y = ____
  10. 6x + 2y = 30, x = 2 → y = ____
  11. x + y = 7, x − y = 5 → x = ____, y = ____
  12. x + y = 8, x − y = 6 → x = ____, y = ____
  13. x + y = 11, x − y = 7 → x = ____, y = ____
  14. x + y = 18, x − y = 0 → x = ____, y = ____
  15. 3x + 2y = 10, x = 2 → y = ____
  16. 6x + 8y = 114, x = 7 → y = ____
  17. 4x + 9y = 40, x = 1 → y = ____
  18. 3x + 1y = 11, x = 3 → y = ____
  19. x + y = 7, x − y = -5 → x = ____, y = ____
  20. 7x + 6y = 75, x = 9 → y = ____