document.write( "Question 472287: please help me,,i'm so very confuse in this problem....\r
\n" ); document.write( "\n" ); document.write( "The measure of angle A is 9 more than twice the measure of angle B.If angle A and angle B are supplementary angles,what is the measure of angle A?
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Algebra.Com's Answer #323829 by sudhanshu_kmr(1152)\"\" \"About 
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\n" ); document.write( "angle B = x\r
\n" ); document.write( "\n" ); document.write( "angle A = 2x + 9 \r
\n" ); document.write( "\n" ); document.write( "both are supplementary angles so, \r
\n" ); document.write( "\n" ); document.write( "x +2x+9 = 180\r
\n" ); document.write( "\n" ); document.write( "=> 3x = 180-9 \r
\n" ); document.write( "\n" ); document.write( "=> 3x = 171\r
\n" ); document.write( "\n" ); document.write( "x = 171/3 = 57\r
\n" ); document.write( "\n" ); document.write( "angle B= 57\r
\n" ); document.write( "\n" ); document.write( "angle A = 123
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