Question

afla nr necunoscute: a+7<11,b+28<32,c-8<4,d-36<5

Answer 1

a <11-4
a <7
a €{1.2.3....6}
b <4
b €{1.2.3}
c <12
c €{1. 2....11}
d <41
d €{1. 2......40}