16,5-(15,75-(9,75))

To solve the expression \( 16.5 - (15.75 - 9.75) \), we will first evaluate the expression within the parentheses.

1. Calculate \( 15.75 - 9.75 \): \[ 15.75 - 9.75 = 6 \]

2. Now substitute this back into the original expression: \[ 16.5 - 6 \]

3. Now perform the final subtraction: \[ 16.5 - 6 = 10.5 \]

Thus, the final result is \( 10.5 \).