Question

The area of a pentagon increased by 27 is the same as four times the area of the pentagon, minus 15. what is the area of the pentagon?

Answer 1

Set up an algebraic equation. This is what it looks like based on what the question tells you:

Let a = area of pentagon
a+27 = 4a-15
3a-15 = 27
3a = 42
a = 14