document.write( "Question 565195: what is 12y+21=9y? i know the answer is -7 but i dont know how to find the answer or how to do the promblem please help!!! \n" ); document.write( "
Algebra.Com's Answer #365688 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
\"12y%2B21=9y\" Start with the given equation.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"12y=9y-21\" Subtract \"21\" from both sides.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"12y-9y=-21\" Subtract \"9y\" from both sides.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"3y=-21\" Combine like terms on the left side.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"y=%28-21%29%2F%283%29\" Divide both sides by \"3\" to isolate \"y\".\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"y=-7\" Reduce.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "----------------------------------------------------------------------\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Answer:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "So the solution is \"y=-7\" \r
\n" ); document.write( "\n" ); document.write( "-------------------------------------------------------------------------------------------------\r
\n" ); document.write( "\n" ); document.write( "If you need more help, email me at jim_thompson5910@hotmail.com\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Jim
\r
\n" ); document.write( "\n" ); document.write( "-------------------------------------------------------------------------------------------------
\n" ); document.write( "
\n" );