document.write( "Question 4066: 2x-8y=16
\n" );
document.write( "-x+4y=-8 \n" );
document.write( "
Algebra.Com's Answer #1859 by lpilon(9)![]() ![]() ![]() You can put this solution on YOUR website! 2x - 8y = 16 \n" ); document.write( "-x + 4y = -8 \n" ); document.write( "_____________ \n" ); document.write( "x - 2y = 8\r \n" ); document.write( "\n" ); document.write( "x = 2y + 8\r \n" ); document.write( "\n" ); document.write( "So, substitute the value of x into one of the equations:\r \n" ); document.write( "\n" ); document.write( "2(2y + 8) - 8y = 16 \n" ); document.write( "4y + 16 - 8y = 16 \n" ); document.write( "Solve for y \r \n" ); document.write( "\n" ); document.write( "-4y = 16 - 16 \n" ); document.write( "-4y = 0 \n" ); document.write( "y = 0\r \n" ); document.write( "\n" ); document.write( "In the other equation using the value of x\r \n" ); document.write( "\n" ); document.write( "-(2y + 8)+ 4y = -8 \n" ); document.write( "-2y - 8 + 4y = -8 \n" ); document.write( "Solve for y \n" ); document.write( "2y = -8 + 8 \n" ); document.write( "y = 0 \n" ); document.write( " \n" ); document.write( " |