Question

Va rog e foarte urgent.

Answer 1

a)x+5<9/-5                          
 x<4}=>x={0,1,2,3}

b)x-2<_5/+2
x<_7=>}x={0,1,2,3,4,5,6,7}

c)x+1997<_2000/-1997
x<_3=}x={0,1,2,3}

d)1217+x<_1221/-1217
x<_4=}x={0,1,2,3,4}