document.write( "Question 455336: x-y-z=1
\n" ); document.write( "2x+y+2z=4
\n" ); document.write( "x+y+3z=5\r
\n" ); document.write( "\n" ); document.write( "solve for x,y,z
\n" ); document.write( "

Algebra.Com's Answer #312611 by Alan3354(69443)\"\" \"About 
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x-y-z=1
\n" ); document.write( "2x+y+2z=4
\n" ); document.write( "x+y+3z=5
\n" ); document.write( "-----------
\n" ); document.write( "x-y-z=1
\n" ); document.write( "2x+y+2z=4
\n" ); document.write( "------------ Add
\n" ); document.write( "3x + z = 5 Eqn A
\n" ); document.write( "---------
\n" ); document.write( "x-y-z=1
\n" ); document.write( "x+y+3z=5
\n" ); document.write( "--------- Add
\n" ); document.write( "2x + 2z = 6
\n" ); document.write( "x + z = 3
\n" ); document.write( "3x+ z = 5 Eqn A
\n" ); document.write( "--------- Subtract
\n" ); document.write( "-2x = -2
\n" ); document.write( "x = 1
\n" ); document.write( "-------
\n" ); document.write( "x + z = 3
\n" ); document.write( "z = 2
\n" ); document.write( "-------
\n" ); document.write( "x-y-z=1
\n" ); document.write( "1-y-2 = 1
\n" ); document.write( "y = -2
\n" ); document.write( "(1,-2,2)
\n" ); document.write( "
\n" );