document.write( "Question 515453: A twelve foot board is cut into two pieces such that the second piece is 4 feet less than three times the length of the first piece. Find the length of both pieces \n" ); document.write( "
Algebra.Com's Answer #343992 by oberobic(2304)\"\" \"About 
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Two pieces: x and y
\n" ); document.write( "x + y = 12
\n" ); document.write( "so
\n" ); document.write( "x = 12-y
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\n" ); document.write( "x = 3y -4
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\n" ); document.write( "since x=x
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\n" ); document.write( "12-y = 3y-4
\n" ); document.write( "16 = 4y
\n" ); document.write( "4y = 16
\n" ); document.write( "y = 4
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\n" ); document.write( "x = 12-4
\n" ); document.write( "x = 8
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\n" ); document.write( "Check to be sure this is the answer.
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\n" ); document.write( "3*4 = 12
\n" ); document.write( "12-4 = 8
\n" ); document.write( "Correct.
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\n" ); document.write( "Answer: The two pieces are 4 ft and 8 ft respectively.
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\n" ); document.write( "Done.
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