Răspuns :
3,(2)+x<9,(7) in N
29/9+x<88/9
x<(88-29)/9
x<59/9
x<6,(5)
x∈{0,1,2,3,4,5,6}
................................
q.e.d.
29/9+x<88/9
x<(88-29)/9
x<59/9
x<6,(5)
x∈{0,1,2,3,4,5,6}
................................
q.e.d.