a] 7x-5≤2x+60\+5
7x≤2x+65\-2x
5x≤65\:5
x≤13
x ∈ [0,1,2,3,......,13]
x=cu toate nr pana la 13si 13
b]18x+256>7·[2x+103]
18x+256>14x+721\ -256
18x>14x+456\ -14x
4x>456
x>114
x ∈[115,116,117.........]
c]12x+9≤4[3x+2]
12x+9≤12X+8
nu este posibil
d]x+9x<110
10x<110\:10
x<11
x∈[0,1,2,3,4....,10]
e]2·[10+7·{82-9∧2}]+X≤2011
2·[10+7·1]+x≤2011
2·17+x≤2011
34+x≤2011\-34
x≤1977
x∈[0,1,2,3,4.........1977]
f] 41∧ x+6<41∧10
x+6<10\-6
x<4
x∈ [0,1,2,3]