Question

Tell weather the given value is a solution of the inequality

Answer 1

Hello there!

No, the number given is not a solution of the inequality

r - 3 ≤ 9

Let's start by adding 3 to both sides

r - 3 + 3 ≤ 9 + 3

r ≤ 12

I hope this helps. Good luck with your studies~

Answer 2

yes, 8 is a solution

r - 3 ≤ 9; r = 8

plug in 8 to r

(8) - 3 ≤ 9
5 ≤ 9 (true)

hope this helps