document.write( "Question 1116288: how do I solve -x-5y+z=17
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\n" ); document.write( " 2x+5y-3z=-10
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Algebra.Com's Answer #731180 by josgarithmetic(39620)\"\" \"About 
You can put this solution on YOUR website!
How, depends what you know.\r
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\n" ); document.write( "\n" ); document.write( "\"system%28x%2B5y-z=-17%2Cx%2By-z=-1%2C2x%2B5y-3z=-10%29\"\r
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\n" ); document.write( "\n" ); document.write( "R2-R1 for new R2;
\n" ); document.write( "R3-2R1 for new R3;\r
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\n" ); document.write( "\n" ); document.write( "\"system%28-4y=16%2C-5y-z=-8%29\"-------two linear equations, two unknown variables\r
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\n" ); document.write( "\n" ); document.write( "\"system%28y=-4%2Cz%2B5y=8%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"system%28y=-4%2Cz=28%29\"--------two of the variables solved - and you can finish the remaining variable however you want.\r
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\n" ); document.write( "\n" ); document.write( "(not the only way to solve)
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