All you have to do is insert the x and y value's, then solve.
x = -3
y = -7
(3(-3) - 2(-7)) (-3(-3) + 4(-7))
(-9 + 14) (9 + -28) (Two negatives make a positive.)
(5)(-19)
= -95
Hope this helps you! Happy thanksgiving, here's a turkey!
