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. 8x + 6y = 126, x = 9 → y = ____
  2. x + y = 7, x − y = -1 → x = ____, y = ____
  3. x + y = 11, x − y = -1 → x = ____, y = ____
  4. 8x + 4y = 88, x = 8 → y = ____
  5. x + y = 13, x − y = -3 → x = ____, y = ____
  6. 6x + 5y = 28, x = 3 → y = ____
  7. x + y = 11, x − y = -3 → x = ____, y = ____
  8. 7x + 7y = 49, x = 5 → y = ____
  9. 9x + 8y = 93, x = 5 → y = ____
  10. x + y = 12, x − y = 6 → x = ____, y = ____
  11. 3x + 9y = 36, x = 9 → y = ____
  12. x + y = 15, x − y = 3 → x = ____, y = ____
  13. x + y = 11, x − y = 5 → x = ____, y = ____
  14. 4x + 4y = 16, x = 2 → y = ____
  15. x + y = 8, x − y = -4 → x = ____, y = ____
  16. 1x + 7y = 45, x = 3 → y = ____
  17. 3x + 3y = 21, x = 1 → y = ____
  18. 6x + 7y = 90, x = 8 → y = ____
  19. 2x + 7y = 20, x = 3 → y = ____
  20. x + y = 11, x − y = 7 → x = ____, y = ____
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