document.write( "Question 582736: Find the point of intersection of the pair of straight lines. \r
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\n" ); document.write( "\n" ); document.write( "y= −8x − 9 \r
\n" ); document.write( "\n" ); document.write( "−y= 9x + 7\r
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Algebra.Com's Answer #372210 by mananth(16946) $\"\"$ $\"About$

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8 x + 1 y = -9 .............1
\n" ); document.write( "-9 x -1 y = 7 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by 1
\n" ); document.write( "Multiply (2) by 1
\n" ); document.write( "8 x 1 y = -9
\n" ); document.write( "-9 x -1 y = 7
\n" ); document.write( "Add the two equations
\n" ); document.write( "-1 x = -2
\n" ); document.write( "/ -1
\n" ); document.write( "x = 2
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "8 x + 1 y = -9
\n" ); document.write( "16 + 1 y = -9
\n" ); document.write( " 1 y = -9 -16
\n" ); document.write( " 1 y = -25
\n" ); document.write( " y = -25
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\n" ); document.write( "m.ananth@hotmail.ca
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