Answer:
The answer is r = -3.
Step-by-step explanation:
Given:
-60=-24+12r.
Now, to solve it:
[tex]-60=-24+12r[/tex]
Adding both sides by 24 we get:
[tex]-36=12r[/tex]
Dividing both sides by 12 we get:
[tex]-3=r[/tex]
[tex]r=-3.[/tex]
Therefore, the answer is r = -3.
