document.write( "Question 898623: Three times an angle minus 60 degrees is equal to its supplement.What is the angle? please with solution!! tnx !! \n" ); document.write( "
Algebra.Com's Answer #544927 by rothauserc(4718) You can put this solution on YOUR website! let x be the angle, then we are given \n" ); document.write( "3x - 60 = 180 -x \n" ); document.write( "add x to both sides of = \n" ); document.write( "4x - 60 = 180 \n" ); document.write( "add 60 to both sides of = \n" ); document.write( "4x = 240 \n" ); document.write( "x = 60 \n" ); document.write( "check our answer \n" ); document.write( "3*60 - 60 = 180 -60 \n" ); document.write( "180 - 60 = 120 \n" ); document.write( "120 = 120 \n" ); document.write( "our answer, the angle is 60 degrees, checks :-) \n" ); document.write( " \n" ); document.write( " |