Respuesta :

DWRead

Answer:

Step-by-step explanation:

j+47 = 55

j = 55-47

j = 8

Answer: 8

Step-by-step explanation:

Sum means addition so j is a number that equals 55 when added to 47. So what you do is subtract 47 from 55 to give you j.  55-47 is 8 so j is 8.