[3*(a+8)*2+2*(a+16)]:5=32

Răspuns :

[3*(a+8)*2+2*(a+16)]:5=32
[3*(a+8)*2+2*(a+16)]=32*5
[(3*a+3*8)*2+(2*a+2*16)]=160
[(3*a+24)*2+2*a+32]=160
(3*2*a+2*24)+2*a+32=160
6*a+48+2*a+32=160
8*a+80=160
8*a=160-80
8*a=80
a=80:8
a=10