document.write( "Question 871877: How si the solution of \r
\n" ); document.write( "\n" ); document.write( "x-y=3
\n" ); document.write( "x+2y=6 \n" ); document.write( "

Algebra.Com's Answer #525773 by mananth(16946) $\"\"$ $\"About$

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1 x -1 y = 3 .............1
\n" ); document.write( "Total value
\n" ); document.write( "1 x + 2 y = 6 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by 2
\n" ); document.write( "Multiply (2) by 1
\n" ); document.write( "2 x -2 y = 6
\n" ); document.write( "1 x + 2 y = 6
\n" ); document.write( "Add the two equations
\n" ); document.write( "3 x = 12
\n" ); document.write( "/ 3
\n" ); document.write( "x = 4
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "1 x -1 y = 3
\n" ); document.write( "4 -1 y = 3
\n" ); document.write( " -1 y = 3 -4
\n" ); document.write( " -1 y = -1
\n" ); document.write( " y = 1
\n" ); document.write( " \n" ); document.write( "

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