document.write( "Question 1055583: 3x-4y-z=6
\n" ); document.write( "2x-y+z=-1
\n" ); document.write( "4x-7y-3z=13
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Algebra.Com's Answer #670898 by Alan3354(69443)\"\" \"About 
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3x-4y-z=6
\n" ); document.write( "2x-y+z=-1
\n" ); document.write( "4x-7y-3z=13
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\n" ); document.write( "I would use elimination.
\n" ); document.write( "Add eqns 1 and 2 --> an eqn in x & y (z is eliminated).
\n" ); document.write( "Multiply eqn 2 by 3, than add eqn 3.
\n" ); document.write( "--> a 2nd eqn in x & y.
\n" ); document.write( "etc.
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\n" ); document.write( "email via the TY note for help or to check your work.
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