document.write( "Question 564114: I need help with elimination.\r
\n" ); document.write( "\n" ); document.write( "x+2y=-1
\n" ); document.write( "2x-3y=12\r
\n" ); document.write( "\n" ); document.write( "Thank you! \n" ); document.write( "

Algebra.Com's Answer #365249 by mananth(16946) $\"\"$ $\"About$

You can put this solution on YOUR website!
1 x + 2 y = -1 .............1
\n" ); document.write( "2 x -3 y = 12 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by 3
\n" ); document.write( "Multiply (2) by 2
\n" ); document.write( "3 x 6 y = -3
\n" ); document.write( "4 x -6 y = 24
\n" ); document.write( "Add the two equations
\n" ); document.write( "7 x = 21
\n" ); document.write( "/ 7
\n" ); document.write( "x = 3
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "1 x + 2 y = -1
\n" ); document.write( "3 + 2 y = -1
\n" ); document.write( " 2 y = -1 -3
\n" ); document.write( " 2 y = -4
\n" ); document.write( " y = -2 \n" ); document.write( "

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