Question

What is the value of l in the following formula when w = 14 cm and P = 80 cm?

P = 2l + 2w

Answer 1

What have you tried?

Answer 2

I am not sure how to do this. It would be better if someone was able to walk through with me on this.

Answer 3

P=2L+2W
80=2L+2(14)
80=2L+28
80-28=2L+28-28
52=2L
52/2=2L/2
26=L

Answer 4

Oh. That really is not that hard. I had the idea correct, I just didnt know where the numbers were supposed to go. THanks!

Answer 5

You are told to solve for \(l\) in\[P=2l+2w.\]Moreover, you are told that \(P=80\) and \(w=14\). If you substitute these values into the above equation, you get\[80=2l+2\times14.\]Can you simplify this?

Answer 6

You're welcome!