The length of a rectangle is 4cm less than twice it’s width. the perimeter of the rectangle is 34 cm. what are the dimensions of the rectangle

w=width

l= 2w-4

perimeter of a rectangle = 34

34 = 2(2w-4+w)

34 = 4w-8+2w

34 = 6w-8

6w = 34+8

6w = 42

w = 42/6

width = 7

length = 2w-4

          = 2(7)-4

          = 14-4

          = 10

i think ur answer is   (3,-1)