Question

Determinati x incat 3,(2)+x<9,(7)in N

Answer 1

 3,(2)+x<9,(7)=
9,(7)-3,(2)=
6,(5)
=> x =6,(6); 6<(7); ...;

Answer 2

$\frac{32-3}{9} +x< \frac{97-9}{9}$

$\frac{29}{9} +x\ \textless \ \frac{88}{9}$

$x\ \textless \ \frac{88}{9}- \frac{29}{9}$

$x\ \textless \ \frac{59}{9}$

x<6,(5)
x∈N⇒x∈{0,1,2,3,4,5,6}