document.write( "Question 15491: One of two supplementary angles measure 30° less than two times its supplementary angle. What is the measure of both angles? \n" ); document.write( "
Algebra.Com's Answer #7685 by venugopalramana(3286)\"\" \"About 
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\n" ); document.write( "x+y=180
\n" ); document.write( " x=2y-30
\n" ); document.write( "2y-30+y=180
\n" ); document.write( " 3y=180+30=210
\n" ); document.write( " y=70
\n" ); document.write( "x=110
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