document.write( "Question 563494: x+2y=0
\n" );
document.write( "3x+4y=4 \n" );
document.write( "
Algebra.Com's Answer #364895 by Maths68(1474)![]() ![]() You can put this solution on YOUR website! x+2y=0...........(1) \n" ); document.write( "3x+4y=4..........(2) \n" ); document.write( "Multiply (1) by 3 both sides \n" ); document.write( "3(x+2y)=0(3) \n" ); document.write( "3x+6y=0...........(3) \n" ); document.write( "Subtract (2) from (3) \n" ); document.write( "3x+6y=0...........(3) \n" ); document.write( "-3x-4y=-4..........(2) \n" ); document.write( "------------------------ \n" ); document.write( "2y=-4 \n" ); document.write( "2y/2=-4/2 \n" ); document.write( "y=-2 \n" ); document.write( "Put the value of y in (1) \n" ); document.write( "x+2y=0 \n" ); document.write( "x+(2)(-2)=0 \n" ); document.write( "x-4=0 \n" ); document.write( "x=4\r \n" ); document.write( "\n" ); document.write( "x,y = 4, -2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |