ajutor eu nu stiu dar poate voi stiti :
[(X-16)×12-80]:8:10=5
2×{2+2×[2+2(6-2×X)]=28
10×[1+3×(3+3:3)]=
10×{1+2×[1+2×(2+4:2)]}=
2×[10+10×(6+2×X)]=300