document.write( "Question 370212: Solve the system of equations if possible.\r
\n" ); document.write( "\n" ); document.write( "2x-3y-z=15
\n" ); document.write( "2x+3y+z=1
\n" ); document.write( "2x+3y-z=3
\n" ); document.write( "

Algebra.Com's Answer #263880 by Alan3354(69443)\"\" \"About 
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2x-3y-z=15
\n" ); document.write( "2x+3y+z=1
\n" ); document.write( "2x+3y-z=3
\n" ); document.write( "-------------
\n" ); document.write( "Use elimination
\n" ); document.write( "2x-3y-z=15
\n" ); document.write( "2x+3y+z=1
\n" ); document.write( "---------- Add
\n" ); document.write( "4x = 15
\n" ); document.write( "x = 4
\n" ); document.write( "------
\n" ); document.write( "2x-3y-z=15
\n" ); document.write( "2x+3y-z=3
\n" ); document.write( "----------- Add
\n" ); document.write( "4x - 2z = 18
\n" ); document.write( "16 - 2z = 18
\n" ); document.write( "z = -1
\n" ); document.write( "--------
\n" ); document.write( "2x+3y+z=1
\n" ); document.write( "8 + 3y - 1 = 1
\n" ); document.write( "3y = -6
\n" ); document.write( "y = -2
\n" ); document.write( "-------
\n" ); document.write( "Most are not this easy.
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