document.write( "Question 66172: x-y=0
\n" ); document.write( "12x-5x=-21
\n" ); document.write( "

Algebra.Com's Answer #46987 by checkley71(8403)\"\" \"About 
You can put this solution on YOUR website!
X-Y=0
\n" ); document.write( "X=-Y
\n" ); document.write( "------------------
\n" ); document.write( "12X-5X=-21
\n" ); document.write( "7X=-21
\n" ); document.write( "X=-21/7
\n" ); document.write( "X=-3
\n" ); document.write( "
\n" );