Start finding 2 numbers that have a difference of 2
[tex]9-7=2[/tex]
since the solution has a sign contrary to the original sign, we need to make this difference negative then
[tex]7-9=-2[/tex]
in order to have this on the right side of the inequality, we use 9 as a positive integer
[tex]?x+9<7[/tex]
then, we make the x negative also in order to switch the sign of the inequality
[tex]\begin{gathered} -x+9<7 \\ -x<7-9 \\ -x<-2 \\ x>2 \end{gathered}[/tex]
