Hi, Im trying to do this practice but I keep getting confused with this question. I don't understand what I'm supposed to do an I keep getting it wrong

Given:
Perimeter of rectangle, P = 26 feet
Length of rectangle, L = 7 feet
Let's find the width.
Apply the formula for Perimeter of a rectangle:
P = 2l + 2w
Where l is the length and w is the width.
P is the perimeter.
Input 26 for P and 7 for l.
Hence, we have:
P = 2l + 2w
26 = 2(7) + 2w
26 = 14 + 2w
Substitute 14 from both sides:
26 - 14 = 14 - 14 + 2w
12 = 2w
Divide both sides by 2:
[tex]\begin{gathered} \frac{12}{2}=\frac{2w}{2} \\ \\ 6=w \\ \\ w=6 \end{gathered}[/tex]Therefore, the width of the rectangle is 6 feet.
ANSWER:
6 feet