Răspuns: ex 44:
x+11<14
x<14-11
x<3
x={0, 1, 2}
6+x<11
x<11-6
x<5
x={0, 1, 2, 3, 4}
20-x>15
-x>15-20
-x>-5
x<5
x={0, 1, 2, 3, 4}
x-8<5
x<5+8
x<13
x={0,1,2,3,4,5,6,7,8,9,10,11,12}
x-6<=9
x<=9+6
x<=15
x={0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}
12-x>=7
-x>=7-12
-x>=-5
x<=5
x={0,1,2,3,4,5}
Explicație: