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Ana knows the perimeter of her backyard is 6x+14x. if the length of her yard is 2x+3x-7,what is the width of her backyard? answer

Respuesta :

Using the simple Perimeter formula we can set up our equation.
[tex]p = 2l + 2w[/tex]
[tex]6x + 14x = 2(2x + 3x - 7) + 2w[/tex]
[tex]20x = 4x + 6x - 14 + 2w[/tex]
[tex]10x = - 14 + 2w[/tex]
[tex]10x + 14 = 2w[/tex]
[tex] 5x + 7 = w[/tex]
Therefore the width is 5x + 7.

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