document.write( "Question 155574: How do you solve: The second angle of a triangle is 3X as large as the 1st. The third angle is 20 degrees larger than the sum of the firs two. Find the measures of the angles. \n" ); document.write( "
Algebra.Com's Answer #114595 by ankor@dixie-net.com(22740)\"\" \"About 
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The second angle of a triangle is 3X as large as the 1st. The third angle is 20 degrees larger than the sum of the first two. Find the measures of the angles.
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\n" ); document.write( "Let x = 1st angle
\n" ); document.write( "then
\n" ); document.write( "3x = 2nd angle
\n" ); document.write( "and
\n" ); document.write( "(x + 3x + 20)
\n" ); document.write( "or
\n" ); document.write( "(4x+20) = 3rd angle
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\n" ); document.write( "x + 3x + (4x+20) = 180
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\n" ); document.write( "8x = 180 - 20
\n" ); document.write( "x = \"160%2F8\"
\n" ); document.write( "x = 20 degrees (1st angle)
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\n" ); document.write( "3(20) = 60 degrees (2nd angle)
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\n" ); document.write( "4(20) + 20 = 100 degrees (3rd angle) \n" ); document.write( "
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