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x - y = 0\r
\n" ); document.write( "\n" ); document.write( "6x + 5y = -22\r
\n" ); document.write( "\n" ); document.write( "The lines intersect at \r
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\n" ); document.write( "\n" ); document.write( "solutions by multiplication and addition
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\n" ); document.write( "Given:
\n" ); document.write( " x - y = 0
\n" ); document.write( "6x + 5y = -22
\n" ); document.write( ".
\n" ); document.write( "We start by \"multiplying\" both sides of the top equation by 5:
\n" ); document.write( "5x - 5y = 0
\n" ); document.write( "6x + 5y = -22
\n" ); document.write( ".
\n" ); document.write( "Then, we \"add\" both equations together:
\n" ); document.write( "5x - 5y = 0
\n" ); document.write( "6x + 5y = -22
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\n" ); document.write( "11x = -22
\n" ); document.write( "x = -2
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\n" ); document.write( "To find y, we plug the above into:
\n" ); document.write( " x - y = 0
\n" ); document.write( "-2 -y = 0
\n" ); document.write( "-y = 2
\n" ); document.write( "y = -2
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\n" ); document.write( "answer: (x,y) = (-2, -2)\r
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