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. 6x + 9y = 117, x = 6 → y = ____
  2. 1x + 6y = 57, x = 9 → y = ____
  3. x + y = 7, x − y = -5 → x = ____, y = ____
  4. 8x + 7y = 91, x = 7 → y = ____
  5. 4x + 8y = 80, x = 8 → y = ____
  6. x + y = 10, x − y = 6 → x = ____, y = ____
  7. x + y = 8, x − y = -2 → x = ____, y = ____
  8. x + y = 7, x − y = 1 → x = ____, y = ____
  9. x + y = 14, x − y = 0 → x = ____, y = ____
  10. 9x + 7y = 72, x = 1 → y = ____
  11. 9x + 8y = 90, x = 2 → y = ____
  12. x + y = 18, x − y = 0 → x = ____, y = ____
  13. x + y = 7, x − y = 3 → x = ____, y = ____
  14. x + y = 16, x − y = 2 → x = ____, y = ____
  15. x + y = 13, x − y = 1 → x = ____, y = ____
  16. 2x + 5y = 12, x = 1 → y = ____
  17. x + y = 7, x − y = 5 → x = ____, y = ____
  18. x + y = 6, x − y = 2 → x = ____, y = ____
  19. 8x + 9y = 153, x = 9 → y = ____
  20. 6x + 1y = 31, x = 4 → y = ____