Question 705178
Try to symbolize each statement.


a=b+0.2b
b=c+0.2c
a=c+22


Equating for a,
b+0.2b=c+22
c=b+0.2b-22


Substitute that for c into the equation for b.
b=c(1+0.2), then b=(b+0.2b-22)(1+0.2)
.
.
b=1.44b-26.4
b=60 marbles.