Answer:
To find the sum of the given expression, let's break it down step by step:
First, we'll evaluate the expression inside the absolute value brackets:
15 + (-25) = -10
Next, we'll take the absolute value of -10:
|-10| = 10
Now, we substitute the absolute value result back into the original expression:
-20 + [-|15 + (-25)|] = -20 + [-10]
Finally, we calculate the sum:
-20 + [-10] = -20 - 10 = -30
Therefore, the sum of the expression -20 + [-|15+(-25)|] is -30.