document.write( "Question 660478: a 2o ft board is cut into 2 pieces. Twice the length of the shorter piece is 4ft more than the length of the longer piece. Find the length of the shorter piece. \n" ); document.write( "
Algebra.Com's Answer #411246 by ReadingBoosters(3246)\"\" \"About 
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20 = x + y
\n" ); document.write( "x = shorter piece
\n" ); document.write( "y = longer piece\r
\n" ); document.write( "\n" ); document.write( "2x = 4 + y : rearrange as 2x - y = 4\r
\n" ); document.write( "\n" ); document.write( "Add the second equation to the first
\n" ); document.write( "x + 2x + y + -y = 20 + 4
\n" ); document.write( "3x = 24
\n" ); document.write( "3x/3 = 24/3
\n" ); document.write( "x = 8 ft is the shorter piece
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