document.write( "Question 1117728: Solve the following system of equations using the​ Gauss-Jordan method.\r
\n" ); document.write( "\n" ); document.write( "-15x-2y+z= -54
\n" ); document.write( "20x+y (blank)= 78
\n" ); document.write( "-10x-2y+z= -34
\n" ); document.write( "

Algebra.Com's Answer #732845 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
What does \"blank\" mean?
\n" ); document.write( "Are we supposed to solve for blank?
\n" ); document.write( "
\n" );