Final answer:
After separately simplifying both sides of the given equality, it is verified that -20 + [3/-5 + (-7)/(-10)] is equal to [-20 + 3/-5] + -7/-10, both simplifying to -19.9.
Step-by-step explanation:
To verify the equality -20 + [3/-5 + (-7)/(-10)] = [-20 + 3/-5] + -7/-10, we need to simplify both sides separately and check if they result in the same value.
- Start with the left side:
- Now, simplify the right side:
Each side simplifies to -19.9. Therefore, the given expression is verified and holds true, demonstrating the associative property of addition.