Question 1147849
2B-C=26
3B+A+C=92
B+C+A=52
C=2B-26
so 3B+A+2B-26=92 or 5B+A=118
and
B+2B-26+A=52 or 3B+A=78
2B=40, Bill is 20
Carlos must be 40-C=26 so Carlos is 14
Anna would be 18

18+3(20)+14 is 92 to check.