The answer is
A≈3217u²
For the area of circles, multiply

×radius²
Essentially, what you need to do is ensure that both sides cancel each other out to make 0 = 0
An example:
2(x + y) + 4 = (4x + 4y + 8)/2
2x + 2y + 4 = 2x + 2y + 4
0 = 0
172:165 is the answer. i hope i helped