Answer:
Explanation:
To solve the expression -10-(-40) + 20 - 40, we need to follow the order of operations, which is commonly known as PEMDAS or BODMAS.
1. Start with the parentheses: -10-(-40) becomes -10 + 40.
-10 + 40 = 30.
2. Next, perform addition and subtraction from left to right: 30 + 20 - 40.
30 + 20 = 50.
50 - 40 = 10.
Therefore, the value of -10-(-40) + 20 - 40 is 10.