2.
600-{1008:[38-21:(21-14)+728:104]}•14=
600-[1008:(38-21:7+7)]•14=
600-[1008:(38-3+7)•14=
600-[1008:(35+7)•14=
600-(1008:42)•14=
600-24•14=
600-336= 264
3.
[(4/3-1/3)•(7/8+1+1/8)+4]•x=120:3-2•(7/2+3/2)
[1•(7/8+9/8)+4]•x=40-2•5 {adica 10/2}
(1•2+4)•x=40-10
(2+4)•x=30
6•x=30
x=30:6
x=5
4.
4 muncitori..............6 zile,daca lucreaza 8 ore pe zi
4 muncitori..............6•8=48 ore termina
1 muncitor................48:4=12 ore termina
8 muncitori...............12•12=144 ore (6 zile)
5.
a+b+c=1603
c=b×3+16
a= bcd i se pune in fata 1 se obtine un numar mai mic cu 2069 cu rasturnatul sau
srry dar nu o stiu pe 5...Srry dar sper ca te.am ajutat..!!
