Răspuns :
Răspuns:
Explicație pas cu pas:
a=b+c
b=3c
c=d:2 => d=2c
d=12 => c=12:2=6 => b=3*6=18 =>a=6+18=24
a+b+c+d=24+18+6+12=60
R: 60
a=b+c—-> a+b+c=2•a
b=3•c——>b:3=c
c=d:2——>c+d= d:2•3
d=12—->c=6(12:2)——b=18(6•3)——->a=24(b+c)
Raspuns final: a+b+c+d=12+6+18+24=60
b=3•c——>b:3=c
c=d:2——>c+d= d:2•3
d=12—->c=6(12:2)——b=18(6•3)——->a=24(b+c)
Raspuns final: a+b+c+d=12+6+18+24=60