Answer :

To solve the problem, consider the expression:

[tex]$$-225 - 131.$$[/tex]

Subtracting a positive number is equivalent to adding a negative number. Therefore, we can rewrite the expression as:

[tex]$$-225 - 131 = -225 + (-131).$$[/tex]

Now, when adding two negative numbers, we add their absolute values and keep the negative sign:

1. Find the absolute values: [tex]$|{-225}| = 225$[/tex] and [tex]$|{-131}| = 131$[/tex].
2. Add these values: [tex]$225 + 131 = 356$[/tex].
3. Attach the negative sign back: [tex]$-356$[/tex].

Thus, the final result of the expression is:

[tex]$$\boxed{-356}.$$[/tex]