document.write( "Question 1085789: 3x + 3y + z = -10
\n" );
document.write( "X-3y+2z = -10
\n" );
document.write( "8x-2y+3z = -28 \n" );
document.write( "
Algebra.Com's Answer #699883 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! 3x + 3y + z = -10 \n" ); document.write( "X -3y + 2z = -10 \n" ); document.write( "8x - 2y + 3z = -28 \n" ); document.write( "------------------------ \n" ); document.write( "You didn't ask a question, or make a request. \n" ); document.write( "-- \n" ); document.write( "If you want to solve for x, y & z, I would use elimination. \n" ); document.write( "---- \n" ); document.write( "Multiply the 1st eqn by 2 and subtract from the 2nd equation --> an eqn in x & y. \n" ); document.write( "--- \n" ); document.write( "Multiply the 1st eqn by 3 and subtract from the 3rd equation --> another eqn in x & y. \n" ); document.write( "--- \n" ); document.write( "Now it's 2 equations in x & y. \n" ); document.write( "============= \n" ); document.write( " \n" ); document.write( " |