Question

During his tennis career in singles​ play, John won 4 fewer tournament A titles than tournament B titles and 2 more tournament C titles than tournament B titles. If he won 13 of these titles​ total, how many times did he win each​ one?

Answer 1

A-4=B
2+C=B
A+B+C=13

A=b+4
C=B-2
Plug in to equation 3
(B+4)+B+(B-2)=13
Rearrange
B=11/3
A=(11/3)+4= 23/3
C=(11/4)-2= 3/4