Question 278421
Set-Up
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Equation 1: {{{44 = 2L + 2W}}}
Equation 2: {{{L = 2W + 7}}}

Solution:
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Plug (2W + 7) into equation 1 for L
Equation 1: {{{44 = 2L + 2W}}}
{{{44 = 2(2W + 7) + 2W}}} Simplify
{{{44 = 4W + 14 + 2W}}} Combine like terms
{{{44 = 6W + 14}}} Subtract 14 from both sides
{{{30 = 6W}}} Divide both sides by 6
{{{highlight(5 = W)}}}
Now plug 5 into equation 2 for W
Equation 2: {{{L = 2W + 7}}}
{{{L = 2*(5) + 7}}}
{{{highlight(L = 17)}}}