document.write( "Question 54262: Helping my daughter and need your help. Need help solving this problem. I need to solve each system using the elimination method. Write no solution or infinitely many solutions where appropriate.\r
\n" ); document.write( "\n" ); document.write( "1. 2x + 5y = -1
\n" ); document.write( " x + 2y = 0\r
\n" ); document.write( "\n" ); document.write( "Thanks
\n" ); document.write( "

Algebra.Com's Answer #36520 by Nate(3500)\"\" \"About 
You can put this solution on YOUR website!
To use the elimination method, you need to get an opposite of a coefficient with the same coefficient.
\n" ); document.write( "x + 2y = 0
\n" ); document.write( "2x + 4y = 0
\n" ); document.write( "-2x - 4y = 0
\n" ); document.write( "Now, combine that with the other equation:
\n" ); document.write( "2x + 5y = -1
\n" ); document.write( "-2x - 4y = 0
\n" ); document.write( "0x + 1y = -1
\n" ); document.write( "y = -1
\n" ); document.write( "Plug:
\n" ); document.write( "x + 2y = 0
\n" ); document.write( "x - 2 = 0
\n" ); document.write( "x = 2
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