document.write( "Question 858696: Solve the following system of linear equations by the substitution method:\r
\n" ); document.write( "\n" ); document.write( "-2x + 4y = 14\r
\n" ); document.write( "\n" ); document.write( "-3x + y = 6
\n" ); document.write( "

Algebra.Com's Answer #517339 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
From eq. 2,
\n" ); document.write( "\"+y+=+3x%2B6\"
\n" ); document.write( "Substitute into eq. 1,
\n" ); document.write( "\"-2x+%2B+4y+=+14\"
\n" ); document.write( "\"-x%2B2y=7\"
\n" ); document.write( "\"-x%2B2%283x%2B6%29=7\"
\n" ); document.write( "\"-x%2B6x%2B12=7\"
\n" ); document.write( "\"5x=-5\"
\n" ); document.write( "\"x=-1\"
\n" ); document.write( "Then
\n" ); document.write( "\"y=3%28-1%29%2B6\"
\n" ); document.write( "\"y=-3%2B6\"
\n" ); document.write( "\"y=3\"
\n" ); document.write( "
\n" ); document.write( "
\n" );