Answer:
r = -6/15 is your answer.
Step-by-step explanation:
What yoy want to do is get r by itself.
3(2 + 5r) = You will times 3 by 2 and 5r to get
6 + 15r = You will then subtract 6 from both sides
15r = -6 You will then divide 15 by both sides to get
r = -6/15 is your answer.
