The image contains an expression that is difficult to interpret due to the OCR's output quality. However, based on what I can see from both the OCR output and the image itself, the expression appears to be:

$(-7 + 5) \cdot \left[(4 - (-6)) \cdot (28 + 7 + 7) - 11(3 - 7 + 5 - (-12) - 15)\right] - 2^3 + 14 \cdot 7 \div 21 \cdot 3 =$

Let me simplify and solve it step by step.

Step 1: Simplify each inner expression.

[ -7