1. The problem is to evaluate the expression $(-7) + (+2.6)$. 2. This is a simple addition of a negative number and a positive decimal number. 3. We can rewrite the expression as $-7 + 2.6$. 4. Adding a positive number to a negative number is equivalent to subtracting the smaller absolute value from the larger absolute value and taking the sign of the number with the larger absolute value. 5. Calculate the absolute values: $| -7 | = 7$ and $| 2.6 | = 2.6$. Since 7 is greater, the result will be negative. 6. Subtract the smaller absolute value from the larger: $7 - 2.6 = 4.4$. 7. Therefore, the result is $-4.4$.