Answer: -112
Explanation:
To answer this question, we need to input all of the values of each variable into the equation. For a we replace it with (-2), b we replace it with 5, c we replace it with 3, and d we replace it with 4.
turns into
Since a number next to another number in parentheses is the same as multiplication, multiply out the numbers next to each other. Let's start with the first half of the equation with
-2 times 5 = -10. -10 times 10 = -100 (remember that a negative times a positive equals a negative).
For the second half of the equation, multiply 3 by 4.
We can now replace the original values with their distributed ones, and then subtract.
