document.write( "Question 263363: 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 #194081 by nerdybill(7384)\"\" \"About 
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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
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\n" ); document.write( "If two angles are supplementary, the sum of the two angles equals 180 degrees.
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\n" ); document.write( "Let x = one angle
\n" ); document.write( "and y = second angle
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\n" ); document.write( "x+y = 180 (equation 1)
\n" ); document.write( "x = 3y+15 (equation 2)
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\n" ); document.write( "Substitute the definition of x from eq 2 into eq 1:
\n" ); document.write( "x+y = 180
\n" ); document.write( "3y+15+y = 180
\n" ); document.write( "4y+15 = 180
\n" ); document.write( "4y = 165
\n" ); document.write( "y = 41.25 degrees
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\n" ); document.write( "Other angle:
\n" ); document.write( "x+y = 180
\n" ); document.write( "x+41.25 = 180
\n" ); document.write( "x = 180-41.25
\n" ); document.write( "x = 138.75 degrees \n" ); document.write( "
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