Question

Question was provided via image upload.

Explanation:

Step1: Recall the rule for adding negative numbers

When adding two negative numbers, we add their absolute values and keep the negative sign. So for \(-5 + (-4)\), we first find the absolute values of \(-5\) and \(-4\), which are \(5\) and \(4\) respectively.

Step2: Add the absolute values

Add the absolute values: \(5 + 4 = 9\).

Step3: Apply the negative sign

Since both numbers are negative, the result is negative. So \(-5 + (-4)=-(5 + 4)=-9\).

Answer:

\(-9\)