the perimeter of a rectangle is 78m the length is 6m more than twice the width

I have the width at 18m and the length at 42m because 18*2=36+6=42 42+36=78 Am I correct? Thanks for any help

3 answers

Let w = width

2w + 2(w + 6) = 78
4w + 12 = 78
4w = 66
w = 16.5
thank you very much
You're very welcome.