Răspuns :
a+a+1+a+2=33
3a+3=33
3a=33-3
3a=30
a=30:3
a=10 (primul nr)
a+1=10+1=11 (al doilea nr)
a+2=10+2=12 (al treilea nr)
3a+3=33
3a=33-3
3a=30
a=30:3
a=10 (primul nr)
a+1=10+1=11 (al doilea nr)
a+2=10+2=12 (al treilea nr)