Add the sum of -205 and -218 to the sum of -66 and 142.

Answer

To solve the problem, we need to follow these steps:

1. **Calculate the sum of -205 and -218.**
\[ -205 + (-218) = -205 - 218 = -423 \]

2. **Calculate the sum of -66 and 142.**
\[ -66 + 142 = 142 - 66 = 76 \]

3. **Add the results from step 1 and step 2.**
\[ -423 + 76 = -423 + 76 = -347 \]

Thus, the final answer is:
\[ \text{The result is } -347. \]