Răspuns :
m+c=40 lei
m=c-10;c=m+10 lei
_______________
m,c=?lei
______________
m |___|
c|___|----+10---|
1.)40-10=30 (2 p.e.)
2.)30:2=15 (lei=mingea)
3.)15+10=25 (lei=cartea)
Verificarea:15+25=40
R=15,25
m=c-10;c=m+10 lei
_______________
m,c=?lei
______________
m |___|
c|___|----+10---|
1.)40-10=30 (2 p.e.)
2.)30:2=15 (lei=mingea)
3.)15+10=25 (lei=cartea)
Verificarea:15+25=40
R=15,25