document.write( "Question 628609: can you help me solve this. linear system equations by elimination \r
\n" ); document.write( "\n" ); document.write( "x + y + z =4
\n" ); document.write( "x - y + 2z=1
\n" ); document.write( "x - y - 3z = -4
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Algebra.Com's Answer #395757 by Alan3354(69443)\"\" \"About 
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x + y + z =4
\n" ); document.write( "x - y + 2z=1
\n" ); document.write( "x - y - 3z = -4
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\n" ); document.write( "All the x coeff's are 1, eliminate x first by subtracting 1 of the eqns from the other 2.
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\n" ); document.write( "If you subtract eqn 3 from 2, both x & y are eliminated.
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