document.write( "Question 218995:
\n" ); document.write( "find two supplementary angles such that the measure of the first angle is 60 degrees less than twice the second?
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Algebra.Com's Answer #164799 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
x+y=180 or x=180-y
\n" ); document.write( "x=2y-60
\n" ); document.write( "2y-60=180-y
\n" ); document.write( "2y+y=180+60
\n" ); document.write( "3y=240
\n" ); document.write( "y=240/3
\n" ); document.write( "y=80 ans.
\n" ); document.write( "x=180-80
\n" ); document.write( "x=100 ans.
\n" ); document.write( "Proof:
\n" ); document.write( "100=2*80-60
\n" ); document.write( "100=160-60
\n" ); document.write( "100=100
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