document.write( "Question 462370: angle x is 9 degrees more than twice the measure of angle y. if angle x and angle y are supplementary angles \n" ); document.write( "
Algebra.Com's Answer #316976 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "angle \"x\"is \"9\" degrees more than \"twice\" the measure of angle \"y\": \r
\n" ); document.write( "\n" ); document.write( "\"x=2y%2B9\"..........1\r
\n" ); document.write( "\n" ); document.write( "if angle \"x\" and angle \"y\" are supplementary angles they add up to \"180\"°:\r
\n" ); document.write( "\n" ); document.write( "\"x%2By=180\".......2\r
\n" ); document.write( "\n" ); document.write( "now solve the system:\r
\n" ); document.write( "\n" ); document.write( "\"x=2y%2B9\"..........1...substitute \"x\" in 2\r
\n" ); document.write( "\n" ); document.write( "\"x%2By=180\".......2
\n" ); document.write( "-------------------------\r
\n" ); document.write( "\n" ); document.write( "\"2y%2B9%2By=180\"......solve for \"y\"\r
\n" ); document.write( "\n" ); document.write( "\"3y=180-9\"\r
\n" ); document.write( "\n" ); document.write( "\"3y=171\"\r
\n" ); document.write( "\n" ); document.write( "\"y=171%2F3\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28y=57%29\"\r
\n" ); document.write( "\n" ); document.write( "find angle \"x\"\r
\n" ); document.write( "\n" ); document.write( "\"x=2y%2B9\"..........1\r
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\n" ); document.write( "\n" ); document.write( "\"x=2%2A57%2B9\"\r
\n" ); document.write( "\n" ); document.write( "\"x=114%2B9\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28x=123%29\"\r
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