Răspuns :
a+b+c egal 24
a egal?
b egal 2.5 egal 10
c egal 5
a+10+5 egal 24
a+15 egal 24
a egal 24 -15
a egal 9
a egal?
b egal 2.5 egal 10
c egal 5
a+10+5 egal 24
a+15 egal 24
a egal 24 -15
a egal 9