Find the following without using the number line:
We have to evaluate: .
The sum of two negative integers is calculated by adding the integers' absolute values and putting a minus sign in the result.
Step 1: Find the absolute values of the integers given:
The absolute value of is .
The absolute value of is .
Step 2: Add the absolute values:
On adding the absolute values, we get- .
Step 3: Put a minus sign to the result:
On putting a minus sign to the result, we get:
Hence, .