The length of a rectangle is 4 meters more than three times its width. The perimeter of the rectangle is 56 meters. What is the width?
+79 P = 2L + 2w
18.4 = 2(3w+4) + 2w
18.4 = 6w + 8 + 2w
18.4 = 8w + 8
10.4 = 8w
w = 10.4/8 = 1.3
L = 3(1.3)+4 = 3.9 + 4 = 7.9
I hope that answers what you are looking for! 
+79 Hold up, I accidentally did the wrong perimeter. If you plug in 56 instead of 18.4, you will get the answer! Sorry about the inconvinience!
