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 = 12, x − y = 6 → x = ____, y = ____
  2. 7x + 6y = 62, x = 8 → y = ____
  3. 5x + 1y = 22, x = 4 → y = ____
  4. 7x + 8y = 114, x = 6 → y = ____
  5. 8x + 7y = 70, x = 7 → y = ____
  6. x + y = 6, x − y = 4 → x = ____, y = ____
  7. 2x + 8y = 74, x = 5 → y = ____
  8. 3x + 3y = 9, x = 1 → y = ____
  9. x + y = 9, x − y = -3 → x = ____, y = ____
  10. x + y = 7, x − y = 1 → x = ____, y = ____
  11. x + y = 6, x − y = 0 → x = ____, y = ____
  12. 8x + 2y = 24, x = 2 → y = ____
  13. x + y = 7, x − y = -5 → x = ____, y = ____
  14. 3x + 9y = 27, x = 3 → y = ____
  15. 6x + 2y = 32, x = 5 → y = ____
  16. 8x + 3y = 81, x = 9 → y = ____
  17. x + y = 17, x − y = 1 → x = ____, y = ____
  18. x + y = 10, x − y = -4 → x = ____, y = ____
  19. 6x + 1y = 38, x = 6 → y = ____
  20. 3x + 8y = 56, x = 8 → y = ____
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