document.write( "Question 291347: If the length of the rectangle is twice the width and the perimeter of the rectangle is 30cm. What is the length and width of the rectangle?\r
\n" ); document.write( "\n" ); document.write( "This is all that I've gotten: L=2W and 2L+2W=30
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Algebra.Com's Answer #210703 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
You now have 2 equations with two unknowns . Good job. Now solve them !
\n" ); document.write( "How do you solve two equations in two unknowns?
\n" ); document.write( "Substitution or elimination.
\n" ); document.write( "What can you substitute.Substitute 2W for L in the second equation or L for 2W
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