document.write( "Question 1203438: 3x+6y-z=6
\n" ); document.write( "3x-3y+5z=-6
\n" ); document.write( "9x+9y-2z=11 \n" ); document.write( "

Algebra.Com's Answer #839001 by josgarithmetic(39617) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "9x+18y-3z=18
\n" ); document.write( "9x-9y+15z=-18
\n" ); document.write( "9x+9y-2z=11
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\n" ); document.write( "\n" ); document.write( "Peform E1-E3 and E2-E3.\r
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\n" ); document.write( "9y-z=7
\n" ); document.write( "-18y+17z=-29
\n" ); document.write( "---------------\r
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\n" ); document.write( "\n" ); document.write( "Make 2*E1.\r
\n" ); document.write( "\n" ); document.write( "-------------
\n" ); document.write( "18y-2z=14
\n" ); document.write( "-18y+17z=-29
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\n" ); document.write( "\n" ); document.write( "Perform E1+E2.\r
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\n" ); document.write( "\n" ); document.write( "15z=-15\r
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\n" ); document.write( "\n" ); document.write( " $\"z=-1\"$
\n" ); document.write( "With this, you can go back and find values for y and x. \n" ); document.write( "

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