-8,27 + 7 * (4,74 : 3 / 5 - 10)
Start by simplifying the expression inside the parentheses:

4,74 : 3 / 5 = 1,58
1.58 - 10 = -8.42

Now substitute this result back into the original expression:

-8,27 + 7 * (-8.42)
-8,27 - 58.94
= -67.21

Therefore, the solution to the expression -8,27 + 7 * (4,74:3/5-10) is -67.21.