document.write( "Question 1152557: The sum of the measures of the angles of a triangle is 180. The sum of the measures of the second and third angles is three times the measure of a first angle. The third angle is 15 more than the second. Let x, y, and z represent the measures of the measures of the first, second and third angles, respectively. Find the measures of the three angles. Do not include the degree symbol in your answer. \n" ); document.write( "
Algebra.Com's Answer #774590 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
Just follow the description literally and then solve.\r
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\n" ); document.write( "\n" ); document.write( "The description as written means exactly:
\n" ); document.write( "\"system%28y%2Bz=3x%2Cz=y%2B15%2Cx%2By%2Bz=180%29\"
\n" ); document.write( "Solve this system.\r
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\n" ); document.write( "\n" ); document.write( "Not the only way to go but:\r
\n" ); document.write( "\n" ); document.write( "\"system%283x-y-z=0%2Cy-z=-15%2Cx%2By%2Bz=180%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Do E1+E2, and E3-E2, and have
\n" ); document.write( "\"system%283x-2z=-15%2Cx%2B2z=195%29\"\r
\n" ); document.write( "\n" ); document.write( "ADD:
\n" ); document.write( "\"%283x-2z%29%2B%28x%2B2z%29=-15%2B195\"\r
\n" ); document.write( "\n" ); document.write( "\"3x%2Bx%2B0=180\"\r
\n" ); document.write( "\n" ); document.write( "\"4x=180\"\r
\n" ); document.write( "\n" ); document.write( "\"x=180%2F4=%282%2A5%2A2%2A9%29%2F%282%2A2%29\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28x=45%29\", and you can find the other two.
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