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. 5x + 3y = 21, x = 3 → y = ____
  2. x + y = 9, x − y = 1 → x = ____, y = ____
  3. 5x + 8y = 46, x = 6 → y = ____
  4. x + y = 17, x − y = 1 → x = ____, y = ____
  5. x + y = 11, x − y = -7 → x = ____, y = ____
  6. 1x + 6y = 25, x = 7 → y = ____
  7. x + y = 10, x − y = -6 → x = ____, y = ____
  8. x + y = 7, x − y = -5 → x = ____, y = ____
  9. 9x + 7y = 112, x = 7 → y = ____
  10. x + y = 13, x − y = -3 → x = ____, y = ____
  11. x + y = 11, x − y = -1 → x = ____, y = ____
  12. 6x + 2y = 36, x = 5 → y = ____
  13. x + y = 9, x − y = -1 → x = ____, y = ____
  14. 4x + 6y = 40, x = 7 → y = ____
  15. 2x + 2y = 26, x = 7 → y = ____
  16. 4x + 2y = 36, x = 7 → y = ____
  17. 9x + 2y = 19, x = 1 → y = ____
  18. x + y = 4, x − y = -2 → x = ____, y = ____
  19. 5x + 7y = 61, x = 1 → y = ____
  20. x + y = 9, x − y = -7 → x = ____, y = ____
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