Răspuns:
EX 1
10L=167LEI
1L=16,7LEI
5L=83,5LEI
18L=300,6LEI
15,5L=258,85LEI
EX2
100T=4675LEI
3T=140,25LEI
5B CATE 7T=1636,25LEI
EX6
(X+395,3):100-10*100=152,3
(X+395,3):100-10=152,3:100
(X+395,3):100-10=1,523
(X+395,3):100=1,523+10
(X+395,3):100=11,523
X+395,3=11,523*100
X+395,3=1152,3
X=1152,3-395,3
X=757
