Answer:
4 feet
Step-by-step explanation:
First we subtract 5 from 13 to find the negative space.
13 - 5 = 8
8 Feet will not be covered by the painting. Let's divide this by two to find the length on each side.
8 ÷ 2 = 4.
4 Feet will be on each side of the painting. So, x = 4.
The lengths would look like this;
4 + 5 + 4
