document.write( "Question 1020197: Solve this equation by gauss elimination method x+y+z=1,
\n" ); document.write( " 2x-y+7z=7,
\n" ); document.write( " 3x-y+2z=2 \n" ); document.write( "

Algebra.Com's Answer #636148 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
Add $\"-2%2AR1\"$ to $\"R2\"$ ,
\n" ); document.write( "Add $\"-3%2AR1\"$ to $\"R3\"$ ,
\n" ); document.write( " $\"x%2By%2Bz=1\"$
\n" ); document.write( " $\"0x-3y%2B4z=4\"$
\n" ); document.write( " $\"0x-4y-z=-1\"$
\n" ); document.write( "Add $\"-%284%2F3%29%2AR2\"$ to $\"R3\"$ ,
\n" ); document.write( " $\"x%2By%2Bz=1\"$
\n" ); document.write( " $\"0x-3y%2B4z=4\"$
\n" ); document.write( " $\"0x%2B0y-%2819%2F3%29z=%28-19%2F3%29\"$
\n" ); document.write( "So then from row 3,
\n" ); document.write( " $\"z=1\"$
\n" ); document.write( "and
\n" ); document.write( " $\"-3y%2B4=4\"$
\n" ); document.write( " $\"-3y=0\"$
\n" ); document.write( " $\"y=0\"$
\n" ); document.write( "and
\n" ); document.write( " $\"x%2B0%2B1=1\"$
\n" ); document.write( " $\"x=0\"$
\n" ); document.write( " \n" ); document.write( "

\n" );