r-8<= 7 — step-by-step solution

Let's solve in

ℝ

r - 8 \leq 7

ⓘ We add

8

to both sides

r \leq 7 + 8

ⓘ Start from

7

and move forward

8

on the number line:

7 + 8

15

▶Solution obtained:

r \leq 15