Question

Solve the following expression when x = 4, and y = -3.
-4(3x - 2y)

Answer 1

The answer is -72

Explanation:

First substitute 4 in for anytime in the equation you see an x. Substitute -3 anytime so see a y in the equation. It should look like this: -4(3{4} -2{-3}). First, multiply 3 with 4 to get 12, and -2 with -3 to get 6. This is what your equation should look like now: -4(12+6). Distribute -4 with 12 and 6 to get: -48-24. -48-24 equals -72. Hope this helped!

Answer 2

`\text{Solve by plugging in values to the equation:}\\\\-4(3(4)-2(-3))\\\\\text{Solve:}\\\\-4(3(4)-2(-3))\\\\-4(12+6)\\\\-4(18)\\\\\boxed{-72}`