Solve: 57 Minus Circle Symbol (Where Circle = 7)

The problem requires us to solve the equation $57 - \circ$, where $\circ = 7$. Follow these steps:

• Step 1: Substitute $\circ$ with its given value: $\circ = 7$.
• Step 2: Perform the subtraction using basic arithmetic: $57 - 7$.
• Step 3: Calculate the result: $57 - 7 = 50$.

Following these steps, the solution to the problem is $\boldsymbol{50}$.