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02-10-2015
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S= 2( lw + lh + wh) Solve for w

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Respuesta :

02-10-2015

You said that    S = 2(lw + lh + wh)

Divide each side by 2 :    S/2 = lw + lh + wh

Subtract 'lh' from each side: S/2 - lh = lw + wh

Factor the right side: S/2 - lh = w(l + h)

Divide each side by (l + h) :    (S/2 - lh) / (l + h) = w

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