Respuesta :

Answer:

l=6, w=2

Step-by-step explanation:

Width = one-third of the length, so length = 3*width

length = 2y+6, width = y-4

l=3w, so 2y-6=3(y-4) or

2y-6=3y-12, add 12 to both sides, subtract 2y from both sides

6=y

l=2y-6 = 2(6)-6=6

w=y-4 = (6)-4 = 2

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