document.write( "Question 1136254: y=2x
\n" ); document.write( "x-y=4 \n" ); document.write( "

Algebra.Com's Answer #754026 by ikleyn(52781) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "

\r\n" );
document.write( "From the first equation, substitute y = 2x into the second equation.\r\n" );
document.write( "You will get then\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "x - 2x = 4,\r\n" );
document.write( "\r\n" );
document.write( "-x     = 4   ====>  x = -4.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Then from  y = 2x  you get  y = -8.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Answer.  x = -4;  y = -8.\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );