document.write( "Question 536403: Solve by elimination
\n" ); document.write( "{21x-7y+51z=141
\n" ); document.write( " 13x+9y-5z=-19
\n" ); document.write( " 19x-8y+23z=30
\n" ); document.write( "

Algebra.Com's Answer #352326 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
x = -2
\n" ); document.write( "y = 3
\n" ); document.write( "z = 4
\n" ); document.write( "---------
\n" ); document.write( "That's too ugly to do by elimination.
\n" ); document.write( "If you have to, you can check your answers.
\n" ); document.write( "
\n" ); document.write( "
\n" );