Question 121961
Let L=length and W=width. You are given:
Equation #1: {{{L=2W+8}}}
You are also given:
Equation #2: {{{2L+2W=64}}}
So you have 2 equations and 2 unknowns. Anytime you can form at least as many equations as unknowns, you can solve the problem!
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Substitute the expression for L from Equation #1 into Equation #2:
{{{2*(2W+8)+2W=64}}}
Solve for W:
{{{4W+16+2W=64}}}
{{{6W=48}}}
{{{highlight(W=8)}}}
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Good Luck,
tutor_paul@yahoo.com