document.write( "Question 1155172: The perimeter of a rectangle is 84cm.
\n" ); document.write( "Its shortest side has a length of 3cm.
\n" ); document.write( "State the length of the longest side.\r
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Algebra.Com's Answer #853792 by timofer(144)\"\" \"About 
You can put this solution on YOUR website!
The shortest side is there two times.
\n" ); document.write( "The longest side, also is two of them.\r
\n" ); document.write( "\n" ); document.write( "Letting b, the longer side
\n" ); document.write( "\"b%2B3=84%2F2\"\r
\n" ); document.write( "\n" ); document.write( "\"b%2B3=42\"\r
\n" ); document.write( "\n" ); document.write( "\"b=39\" the longer side
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