document.write( "Question 311567: Two angles are supplementary. One angle is 15° more than three times the other angle. Find the measures of the angles. (Let x and y represent the angles.) \n" ); document.write( "
Algebra.Com's Answer #222865 by checkley77(12844)\"\" \"About 
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x=3y+15
\n" ); document.write( "x+y=180
\n" ); document.write( "(3y+15)+y=180
\n" ); document.write( "3y+15+y=180
\n" ); document.write( "4y=180-15
\n" ); document.write( "4y=165
\n" ); document.write( "y=165/4
\n" ); document.write( "41.25 degrees for the smaller angle.
\n" ); document.write( "x=3*41.25+15
\n" ); document.write( "x=138.75 ans. for the larger angle.
\n" ); document.write( "Proof:
\n" ); document.write( "41.25+138.75=180
\n" ); document.write( "180=180
\n" ); document.write( "
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