document.write( "Question 365371: how do you solve the system of equations with these three equations?\r
\n" ); document.write( "\n" ); document.write( "x-y+z=8
\n" ); document.write( "x+y+z=6
\n" ); document.write( "x+y-z=-12
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Algebra.Com's Answer #260465 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
1.\"x-y%2Bz=8\"
\n" ); document.write( "2.\"x%2By%2Bz=6\"
\n" ); document.write( "3.\"x%2By-z=-12\"
\n" ); document.write( "Add eq. 1 and eq. 3,
\n" ); document.write( "\"x-y%2Bz%2Bx%2By-z=8-12\"
\n" ); document.write( "\"2x=-4\"
\n" ); document.write( "\"highlight%28x=-2%29\"
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\n" ); document.write( "Add eq. 1 and eq. 2,
\n" ); document.write( "\"x-y%2Bz%2Bx%2By%2Bz=8%2B6\"
\n" ); document.write( "\"2x%2B2z=14\"
\n" ); document.write( "\"2%28-2%29%2B2z=14\"
\n" ); document.write( "\"2z=18\"
\n" ); document.write( "\"highlight%28z=9%29\"
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\n" ); document.write( "Then from eq. 2,
\n" ); document.write( "\"x%2By%2Bz=6\"
\n" ); document.write( "\"-2%2By%2B9=6\"
\n" ); document.write( "\"highlight%28y=-1%29\"
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