Answer:
r = -10
Explanation:
Your equation is 6r = 4r - 20
To solve this equation, find out r's value.
To do that, you must get r alone on one side of the equation
6r = 4r - 20
[Subtract 4r from both sides]
2r = -20
[Now divide both sides by 2]
r = -10
So, the answer to this equation is r = -10
I hope this helps! :)