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 = 10, x − y = 4 → x = ____, y = ____
  2. 3x + 9y = 39, x = 7 → y = ____
  3. x + y = 13, x − y = 5 → x = ____, y = ____
  4. x + y = 11, x − y = -1 → x = ____, y = ____
  5. x + y = 9, x − y = -3 → x = ____, y = ____
  6. 5x + 7y = 32, x = 5 → y = ____
  7. 9x + 2y = 77, x = 7 → y = ____
  8. x + y = 9, x − y = 1 → x = ____, y = ____
  9. x + y = 9, x − y = 7 → x = ____, y = ____
  10. x + y = 8, x − y = 0 → x = ____, y = ____
  11. x + y = 18, x − y = 0 → x = ____, y = ____
  12. 8x + 4y = 72, x = 7 → y = ____
  13. 1x + 2y = 8, x = 6 → y = ____
  14. x + y = 9, x − y = -7 → x = ____, y = ____
  15. x + y = 11, x − y = -7 → x = ____, y = ____
  16. x + y = 12, x − y = -2 → x = ____, y = ____
  17. x + y = 10, x − y = -4 → x = ____, y = ____
  18. 1x + 3y = 17, x = 2 → y = ____
  19. 2x + 2y = 20, x = 2 → y = ____
  20. 9x + 5y = 84, x = 6 → y = ____
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