document.write( "Question 592057: Please, solve this system using elimination.\r
\n" ); document.write( "\n" ); document.write( "3x + 5y = -18
\n" ); document.write( "4x - 10y = -21\r
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Algebra.Com's Answer #375822 by mananth(16946)\"\" \"About 
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3 x + 5 y = -18 .............1
\n" ); document.write( "4 x -10 y = -21 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by 2
\n" ); document.write( "Multiply (2) by 1
\n" ); document.write( "6 x 10 y = -36
\n" ); document.write( "4 x -10 y = -21
\n" ); document.write( "Add the two equations
\n" ); document.write( "10 x = -57
\n" ); document.write( "/ 10.00
\n" ); document.write( "x = -5.70
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "3.00 x + 5.00 y = -18.00
\n" ); document.write( "-17.10 + 5.00 y = -18.00
\n" ); document.write( " 5.00 y = -18.00 + 17.10
\n" ); document.write( " 5.00 y = -0.90
\n" ); document.write( " y = -0.18
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