Question 1008964
.
M=Mary's weight; B=Bryan's weight=M+24 lbs
M+B=320 lbs
M+(M+24 lbs)=320 lbs
M+M=296 lbs
2M=296 lbs
M=148 lbs
ANSWER 1: Mary weighs 148 pounds.
.
B=M+24lbs=148lbs+24lbs=172 lbs
ANSWER 2: Bryan weighs 172 pounds.
.
CHECK:
M+B=320lbs
148lbs+172lbs=320lbs
320lbs=320lbs