Help, I have no clue how to do this, My memory from 4th grade is bad ;)

Answer:
S=2
Step-by-step explanation:
the answer can not be higher than 2 because the inequality shows 9 is bigger than what is being added.
9 Is greater than or equal to 7+2
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
Let's simpify the inequality ~
So, the values equal to or less than 2 should be the required solutions ~
that is ~