Answer:
j=8
Step-by-step explanation:
j + 47 = 55
55-47=8
j = 8
Since the sum of j and 47 is 55, you would add j and 47. But since u need to find out j, you would subtract 55 - 47 which equals 8.
Check:
8 + 47 = 55 :)
Hope this helps!