Question

Dean needs

60
inches of wood to build a rectangular picture frame.
The length,
l,
of the frame is twice its width,
w
.

Three of these equations give the correct value for
w
.
Which equation does NOT?



Clear Check

2⋅(2w+w)=60




w+2w+w+2w=60




2⋅w+2⋅2w=60




w+2w=60

Answer 1

2*(2w+w)=60

Explanation:

Answer 2

P = 2(W + L)
P = 60
L = 2W

These are the correct ones:
60 = 2(W + 2W) or W + 2W + W + 2W = 60 or 2*W + 2*2W = 60

so the one that does not work is the last one : W + 2w = 60 <==