Respuesta :

Answer:

3.78 because u subtract 17.22 from 21

Answer: Please make your question clearer next time.

n= 3.78

Step-by-step Explanation:

Subtract 17.22 from both sides of the equation.

n + 17.22=22

n + 17.22 - 17.22 = 21 - 17.22

Simplify: 21 - 17.22= 3.78, Therefore n= 3.78.