Answer:
r = 16.5
Step-by-step explanation:
Move the subtraction over to the over side first
0.1r - 1 = 0.65
It becomes addition on the right side
0.1r = 0.65 + 1
Move the multiplication over to the over side first
0.1r = 1.65
It becomes division on the right side
r = 1.65 / 0.1
r = 16.5
