○ + ○ : ○ = -8

1. Let the circle be represented by 'z'. The equation is z + (z / z) = -8.

2. Since z / z = 1 (assuming z is not 0), the equation becomes z + 1 = -8.

3. Solving for z, we get z = -8 - 1 = -9.

The value of the circle is -9.