First thing you have to do is take the 5 + -8 which equals -3 then you have to 33-18 which equals 15 then u have to divide by the -3 which gives you equal your answer of -5
Answer:

Step-by-step explanation:
The area of an rectangle is given by the following formula:

Where:
- Width, in centimeters.
- Height, in centimeters.
The differential of the expression is derived hereafter:




If f(x) = 0 then
solutions
x = 7 , x = -4
hope it helps