document.write( "Question 534155: solve the following system of equations using substiution. Please help!\r
\n" ); document.write( "\n" ); document.write( "x-4y=4
\n" ); document.write( "6x-3y=-18 \n" ); document.write( "
Algebra.Com's Answer #351329 by mananth(16946)\"\" \"About 
You can put this solution on YOUR website!
1 x -4 y = 4 .............1
\n" ); document.write( "-3 y = -18 -6 x ---------2
\n" ); document.write( "/ -3 =
\n" ); document.write( " y = 6 + 2 x
\n" ); document.write( "Substitute y in (1)
\n" ); document.write( "1 x -4 ( 6 + 2 x ) = 4
\n" ); document.write( "1 x -24 + -8 x = 4
\n" ); document.write( "1 x -8 x = 4 24
\n" ); document.write( "-7 x = 28
\n" ); document.write( "/ -7
\n" ); document.write( "x= -4
\n" ); document.write( "Plug the value of x in (1)
\n" ); document.write( "1 x -4 y = 4
\n" ); document.write( "1 * -4 -4 y = 4
\n" ); document.write( "-4 -4 y = 4
\n" ); document.write( "-4 y = 8
\n" ); document.write( "/ -4
\n" ); document.write( "y= -2
\n" ); document.write( "m.ananth@hotmail.ca
\n" ); document.write( " \n" ); document.write( "
\n" );