Question

Va rog ex incercuit ! Multumesc !

Answer 1

{2·[3+(4+x):5]-6}=8+7-1
2·[3+(4+x):5]-6=14
2·[3+(4+x):5]=14+6
2·[3+(4+x):5]=20
3+(4+x):5=20:2
3+(4+x):5=10
(4+x):5=10-3
(4+x):5=7
4+x=7·5
4+x=35
x=35-4
x=31