Sistemi di equazioni Worksheet

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Sistemi di equazioni Worksheet

Nome: ____________________Date: ____________

Instructions: Risoluzione di sistemi di equazioni lineari mediante sostituzione ed eliminazione.

20 problems

  1. x + y = 11, x − y = -1 → x = ____, y = ____
  2. x + y = 13, x − y = -5 → x = ____, y = ____
  3. 6x + 1y = 35, x = 5 → y = ____
  4. x + y = 12, x − y = -4 → x = ____, y = ____
  5. 7x + 5y = 78, x = 9 → y = ____
  6. x + y = 13, x − y = 5 → x = ____, y = ____
  7. 4x + 6y = 78, x = 6 → y = ____
  8. x + y = 10, x − y = -6 → x = ____, y = ____
  9. x + y = 5, x − y = 3 → x = ____, y = ____
  10. x + y = 12, x − y = 6 → x = ____, y = ____
  11. 2x + 9y = 34, x = 8 → y = ____
  12. x + y = 11, x − y = 1 → x = ____, y = ____
  13. x + y = 10, x − y = 6 → x = ____, y = ____
  14. 4x + 8y = 72, x = 8 → y = ____
  15. 9x + 4y = 40, x = 4 → y = ____
  16. 7x + 3y = 48, x = 6 → y = ____
  17. 4x + 9y = 89, x = 2 → y = ____
  18. 6x + 5y = 99, x = 9 → y = ____
  19. x + y = 8, x − y = -6 → x = ____, y = ____
  20. 7x + 7y = 77, x = 9 → y = ____