Question

evaluate $-3 \times (-4) - (-9)$.

Explanation:

Step1: Calculate multiplication

First, calculate \(-3 \times (-4)\). The product of two negative numbers is positive, so \(-3 \times (-4) = 12\).

Step2: Calculate subtraction of negative

Next, we have \(12 - (-9)\). Subtracting a negative number is the same as adding its positive counterpart, so \(12 - (-9) = 12 + 9\).

Step3: Add the numbers

Now, add \(12\) and \(9\): \(12 + 9 = 21\).

Answer:

21