document.write( "Question 511324: Solve the system by using the substitution method. x-2y= 10, 2x-4y= 16 \n" ); document.write( "
Algebra.Com's Answer #342139 by oberobic(2304)\"\" \"About 
You can put this solution on YOUR website!
x-2y= 10
\n" ); document.write( "2x -4y = 16
\n" ); document.write( ".
\n" ); document.write( "multiply the first equation by 2
\n" ); document.write( ".
\n" ); document.write( "2x -4y = 20
\n" ); document.write( "2x -4y = 16
\n" ); document.write( ".
\n" ); document.write( "That's impossible.\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );