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 = 9, x − y = -7 → x = ____, y = ____
  2. x + y = 15, x − y = -3 → x = ____, y = ____
  3. 1x + 2y = 19, x = 1 → y = ____
  4. x + y = 6, x − y = -2 → x = ____, y = ____
  5. 4x + 3y = 52, x = 7 → y = ____
  6. x + y = 15, x − y = 1 → x = ____, y = ____
  7. x + y = 14, x − y = 2 → x = ____, y = ____
  8. 5x + 4y = 13, x = 1 → y = ____
  9. 9x + 2y = 19, x = 1 → y = ____
  10. 8x + 2y = 50, x = 6 → y = ____
  11. x + y = 4, x − y = -2 → x = ____, y = ____
  12. x + y = 8, x − y = -4 → x = ____, y = ____
  13. 3x + 4y = 32, x = 4 → y = ____
  14. x + y = 11, x − y = 3 → x = ____, y = ____
  15. 6x + 7y = 31, x = 4 → y = ____
  16. x + y = 6, x − y = 0 → x = ____, y = ____
  17. 2x + 7y = 70, x = 7 → y = ____
  18. x + y = 12, x − y = -2 → x = ____, y = ____
  19. 2x + 8y = 28, x = 2 → y = ____
  20. x + y = 11, x − y = -7 → x = ____, y = ____