Answer:
54
Explanation:
Pretty fun question to answer actually.
First step: replace all of the x's and y's with the numbers given to us in the equation.
We know that x = -6 and y = -9, so we can replace all of the x and y's in the equation with those two numbers.
Second step: Actually replace the x and y's.
xy - 3x + 2y (I'm replacing x and y with the numbers given to us)
(-6)(-9) - 3(-6) + 2(-9)
Third step: Let's work each operation now.
(-6)(-9) - 3(-6) + 2(-9)
(-6)(-9) = 54 (Remember that two negatives multiplied together make a positive)
-3(-6) = 18
2(-9) = -18 (A negative number multiplied by a positive number makes a negative number)
Fourth step: Add or subtract the results of the operation.
54 + 18 - 18 = 54.
If you have any questions or want me to go further into detail, then please leave a comment. Good luck!