Question 1114129
{{{system(w=L/4,2w+2L=7w+12)}}}

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{{{L=4w}}}
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{{{2w+2*4w=7w+12}}}
{{{10w=7w+12}}}
{{{3w=12}}}
{{{highlight(w=4)}}}
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{{{highlight(L=16)}}}


AREA is {{{w*L}}}.