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Question
rectangles the formula ( p = 2ell + 2w ) represents the perimeter of a rectangle. in this formula, ( ell ) is the length of the rectangle and ( w ) is the width. solve the formula for ( ell ).
Step1: Restar \(2w\) de ambos lados
Para aislar el término con \(\ell\), restamos \(2w\) de ambos lados de la ecuación \(P = 2\ell + 2w\). Esto da:
\(P - 2w = 2\ell + 2w - 2w\)
Simplificando el lado derecho, tenemos:
\(P - 2w = 2\ell\)
Step2: Dividir ambos lados por 2
Ahora, para resolver para \(\ell\), dividimos ambos lados de la ecuación por 2:
\(\frac{P - 2w}{2} = \frac{2\ell}{2}\)
Simplificando ambos lados, obtenemos:
\(\ell = \frac{P - 2w}{2}\)
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\(\ell = \frac{P - 2w}{2}\)