document.write( "Question 252049: 2K-5K=-21 \n" ); document.write( "
Algebra.Com's Answer #183789 by stano(2)\"\" \"About 
You can put this solution on YOUR website!
2k-5k=-21, simplify. 2k-5k=-3k therefore, -3k=-21, k=7 \n" ); document.write( "
\n" );