document.write( "Question 1120808: 2x +y - z=4,3x +5y +z=16,x-2y-5z=3.
\n" );
document.write( "x+2y+z=4,x+3y-2z=2 , 3x +y+2z =6 c
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #736542 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! 2x +y - z=4 \n" ); document.write( "3x +5y +z=16 \n" ); document.write( " x -2y -5z=3 \n" ); document.write( "----- \n" ); document.write( "Add the 1st 2 equations --> 1 eqn in x & y \n" ); document.write( "Multiply the 1st equation by 5, then subtract eqn 3 --> another equation in x&y. \n" ); document.write( "--- \n" ); document.write( "Solve for x or y, the sub and find the other 2 variables. \n" ); document.write( "================\r \n" ); document.write( "\n" ); document.write( "x+2y+z=4 \n" ); document.write( "x+3y-2z=2 \n" ); document.write( "3x +y+2z =6 \n" ); document.write( "----- \n" ); document.write( "Eliminate any of the 3 variables first, etc. \n" ); document.write( "----- \n" ); document.write( "email via the TY note for help or to check your work. \n" ); document.write( " \n" ); document.write( " |