Respuesta :

Answer:

x_n = x_(n-1) - 3

Step-by-step explanation:

x_n = x_(n-1) - 3

Take the previous number and subtract 3

Answer:

Just keep on adding 3

Step-by-step explanation:

10 + 3 = 13 + 3 = 16 +3 =19 + 3 = 22