👤

a)×+2 <12
b) 7-×>2
c)257+×<260
d)423-×>427


Răspuns :

a) x<10
b) x>9
c) x<3
d) x>850

Sper ca te-am ajutat :D !
a)x={0,1,2,3,4,5,6,7,8,9}
b)x={0,1,2,3,4,}
c)x={0,1,2,}