A zoologist is recording the loss of wolves in her state. she notes the number of wolves , w, in the state on January 1. One year later, there were 84 wolves in the state , which is 23 fewer wolves than were in the state a year earlier .

which equation represents this situation ?


a) w+23=84
b) w-23=84
c) 23-w=84
d) w-84=-23