document.write( "Question 546879: 8x+4y=-20
\n" ); document.write( "5x-8y=-23 \n" ); document.write( "

Algebra.Com's Answer #356115 by mananth(16946) $\"\"$ $\"About$

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8 x + 4 y = -20 .............1
\n" ); document.write( "5 x -8 y = -23 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by 2
\n" ); document.write( "Multiply (2) by 1
\n" ); document.write( "16 x 8 y = -40
\n" ); document.write( "5 x + -8 y = -23
\n" ); document.write( "Add the two equations
\n" ); document.write( "21 x = -63.000
\n" ); document.write( "/ 21
\n" ); document.write( "x = -3
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "8 x + 4 y = -20
\n" ); document.write( "-24 + 4 y = -20
\n" ); document.write( " 4 y = -20 + 24
\n" ); document.write( " 4 y = 4
\n" ); document.write( " y = 1
\n" ); document.write( " \n" ); document.write( "

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