Use the area of rectangle formula which is:

Given that:
- area of rectangle = 16
- width = 8
- length = x-5
Substitute in the formula:

Distribute 8 in the expression:

Move -40 to another side and change from -40 to 40.

Then move 8 to divide 56, leaving only x.

Hence, the answer is:

Answer:-2x^2+3x-7=0
Step-by-step explanation:
Is there anything to look at?
Answer:
1 and 3, 2 and 4.
Step-by-step explanation:
1. -1.66666666667
2. 1
3. -1.66666666667
4. -1
<span>2x=4
Divide 2 on both sides so that the only thing remaining on the left side is the variable x.
Final Answer: x = 2</span>