Tina is making rectangular signs. Each poster has an area of 1800 square inches and the length is 30 inches more than the width. Find the length and width of her sign.

If x represents the width of each sign, select all of the equations that could be used to solve this problem.

2(x)+2(x+30)=1800

(x+30)(x)=1800

x(30x)=1800

x(x+30)=1800