document.write( "Question 212723: find the measure of a supplement of angle R where angle R is equal to 6x+15 \n" ); document.write( "
Algebra.Com's Answer #160639 by nerdybill(7384)\"\" \"About 
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find the measure of a supplement of angle R where angle R is equal to 6x+15
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\n" ); document.write( "If two angles are supplementary, the sum of the two angles = 180
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\n" ); document.write( "Therefore, the
\n" ); document.write( "\"supplement of angle R\" = 180 - (6x+15)
\n" ); document.write( "\"supplement of angle R\" = 180 - 6x -15
\n" ); document.write( "\"supplement of angle R\" = 165 - 6x\r
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