Respuesta :

Here, Length = y
Width = x

It is given that, y = 3x

1) Linear Equation for Perimeter, P = 2 (l + w)
 84 = 2(3x + x)
 84 = 2(4x)
 84 = 8x

2) Linear equation for relation of Length & width would be:
  y = 3x

Hope this helps!
986929

Answer:

Here, Length = y

Width = x

It is given that, y = 3x

1) Linear Equation for Perimeter, P = 2 (l + w)

 84 = 2(3x + x)

 84 = 2(4x)

 84 = 8x

2) Linear equation for relation of Length & width would be:

 y = 3x