If r=5/3r+20/3, what is r? URGENT!!!!

2 answers

10
leave r on one side by subtracting 5/3 r to the left side.

r = (5/3)r + (20/3)

-(5/3)r + r = 20/3

(-2/3)r = 20/3

solving for r:

(20/3) / (-2/3) = -10

Answer: r = -10