document.write( "Question 1128337: suppose that COP and TOD are vertical angles, COP = 11x - 17 and TOD = 9x + 11. \r
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Algebra.Com's Answer #801802 by CubeyThePenguin(3113)\"\" \"About 
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Vertical angles are angles that are opposite each other, so they are equal.\r
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\n" ); document.write( "\n" ); document.write( "\n" ); document.write( "\n" ); document.write( "11x - 17 = 9x + 11\r
\n" ); document.write( "\n" ); document.write( "2x = 28\r
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\n" ); document.write( "\n" ); document.write( "x = 14\r
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