That’s easy if you think about it because 487 isn’t even in the 1000’s so the nearest 1000’s spot. Soo the answer is 1000
6............................................
6 + 7b - 7 = 5 + b
7b - 1 = 5 + b
7b = 5 + b + 1
7b = b + 6
7b - b = 6
6b = 6
b = 1
Answer: B)
