document.write( "Question 666691: The perimeter and area of a rectangle if one side is 3 ft shorter than three times the other side.\r
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Algebra.Com's Answer #414639 by MathLover1(20850)\"\" \"About 
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if one side (let it be \"a\") is \"3ft\" shorter than three times the other side (let it be \"b\"), then\r
\n" ); document.write( "\n" ); document.write( "\"a-3ft=3b\"..........1\r
\n" ); document.write( "\n" ); document.write( "The perimeter and area of a rectangle:\r
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\n" ); document.write( "\n" ); document.write( "the perimeter is \"P=2a%2B2b\"\r
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\n" ); document.write( "\n" ); document.write( "and the area is \"A=a%2Ab\"\r
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\n" ); document.write( "\n" ); document.write( "\"a-3ft=3b\"..........1..solve for \"a\"\r
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\n" ); document.write( "\n" ); document.write( "\"a=3b%2B3ft\".....plug it in \"P=2a%2B2b\"\r
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\n" ); document.write( "\n" ); document.write( " \"P=2%283b%2B3ft%29%2B2b\"\r
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\n" ); document.write( "\n" ); document.write( "\"P=6b%2B6ft%2B2b\"\r
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\n" ); document.write( "\n" ); document.write( "\"P=8b%2B6ft\".....\"P\" is expressed in terms of side \"b\"\r
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\n" ); document.write( "\n" ); document.write( "\"A=%283b%2B3ft%29b\"\r
\n" ); document.write( "\n" ); document.write( "\"A=3b%5E2%2Bb%2A3ft\"\r
\n" ); document.write( "\n" ); document.write( "\"A=3%28b%5E2%2Bb%2Aft%29\"...\"A\" is expressed in terms of side \"b\"
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