Răspuns :
a+b+c=150
b=a+10
c=2b=2(a+10)=2a+20
a+a+10+2a+20=150
4a=150-30
4a=120 =>a=30
b=30+10=>b=40
c=80
b=a+10
c=2b=2(a+10)=2a+20
a+a+10+2a+20=150
4a=150-30
4a=120 =>a=30
b=30+10=>b=40
c=80