document.write( "Question 854277: I need to solve the following Linear Equation\r
\n" ); document.write( "\n" ); document.write( "-y=2x+1
\n" ); document.write( "-4x-2y=3 \n" ); document.write( "

Algebra.Com's Answer #514545 by mananth(16946) $\"\"$ $\"About$

You can put this solution on YOUR website!
2 x + -1 y = 1 .............1
\n" ); document.write( "-1 y = 1 + -2 x
\n" ); document.write( "/ -1 =
\n" ); document.write( " y = -1 + 2 x
\n" ); document.write( "-4 x + -2 y = 3 .....................2
\n" ); document.write( "Substitute y in (2)
\n" ); document.write( "-4 x + -2 ( -1 + 2 x
\n" ); document.write( "-4 x + 2 + -4 x = 3
\n" ); document.write( "-4 x -4 x = 1
\n" ); document.write( "-8 x = 1
\n" ); document.write( "/ -8
\n" ); document.write( "x= - 1/ 8
\n" ); document.write( "Plug the value of x in (1)
\n" ); document.write( "2 x + -1 y = 1
\n" ); document.write( "2 * - 1/ 8 + -1 y = 1
\n" ); document.write( "- 1/ 4 + -1 y = 1
\n" ); document.write( "-1 y = 5/ 4
\n" ); document.write( "/ -1
\n" ); document.write( "y= -5/ 4 \r
\n" ); document.write( "\n" ); document.write( "x=-1/8, y = -5/4 \n" ); document.write( "

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