Question 533226
width = w
length = 2w+3

Area = L*W

w(2w+3)=35
2w^2+3w=35
2w^2+3w-35=0

2w^2+10w-7w-35=0
2w(w+5)-7(w+5)=0
(w+5)(2w-7)=0

w=-5 OR w=7/2
ignore negative value

width = 3.5
length =>2w+3 => 2*3.5 +3 = 10