document.write( "Question 399138: y=2x-6
\n" ); document.write( "x+y=9 \n" ); document.write( "

Algebra.Com's Answer #282654 by mananth(16946) $\"\"$ $\"About$

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y=2x-6
\n" ); document.write( "y-2x=-6...........1
\n" ); document.write( "x+y=9.............2
\n" ); document.write( "multiply (2) by 2
\n" ); document.write( "2x+2y=18
\n" ); document.write( "add to (1)
\n" ); document.write( "3y=18-6
\n" ); document.write( "3y=12
\n" ); document.write( "/3
\n" ); document.write( "y =4
\n" ); document.write( "..
\n" ); document.write( "plug value of y in (1)
\n" ); document.write( "4=2x-6
\n" ); document.write( "+6
\n" ); document.write( "10=2x
\n" ); document.write( "/2
\n" ); document.write( "x= 5 \n" ); document.write( "

\n" );