Answer:
r=3
Step-by-step explanation:
Let's solve your equation step-by-step.
2r−15=−9r+18
5(-5x - 2) =
-25x - 10
10(-5x+4) =
-50x + 40
-25x-10 = -50x+40
-25x = -50x + 50
25x = 50
x = 2
< means less than
example: 7 < 10