Write system of equations and solve using any method (graphing, substitution, or elimination)

Question

The perimeter of a rectangular field is 140 feet. The length is ten feet more than twice the width. Find the dimensions.

Answer 1

L= 10 + 2W

Perimeter = 2(L+W) = 140

L+W = 140/2 = 70

10+2W +W =70

3W = 70-10 = 60

W = 60/3 = 20 feet Wide

L= 10+2(20) = 50 feet Long

20+50= 70 = 140/2

Answer 2

140 = 2(w + 2w + 10)

Can you solve for w and answer?