"Swapping the terms does not change the sum when both the terms are positive numbers".
 
Will this also hold when there are terms having negative numbers as well? Take some more expressions and check.
 
 
Let's check it by taking the negative numbers.
 
1. \((-8)\) \(+\) \((-4)\) \(=\)
 
\((-4)\) \(+\) \((-8)\) \(=\)
 
 
2. \((-2)\) \(+\) 7 \(=\)
 
7 \(+\) \((-2)\) \(=\)