Acm !!!!!!!! Dau coroană !!

Răspuns:
a+b+c=(15×3+2)/3
a+b+c=47/3
b=2a
b=c-2/3=>b=2a+2/3
³⁾a+³⁾2a+³⁾2a+2/3=47/3
3a+6a+6a+2=47
15a=47-2
a=45/15=>a=3
b=2×3=>b=6
c=18/3+2/3=>c = 20/3