SOLUTION: Three times an angle minus 60 degrees is equal to its supplement.What is the angle? please with solution!! tnx !!
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Question 898623: Three times an angle minus 60 degrees is equal to its supplement.What is the angle? please with solution!! tnx !! Answer by rothauserc(4718) (Show Source):
You can put this solution on YOUR website! let x be the angle, then we are given
3x - 60 = 180 -x
add x to both sides of =
4x - 60 = 180
add 60 to both sides of =
4x = 240
x = 60
check our answer
3*60 - 60 = 180 -60
180 - 60 = 120
120 = 120
our answer, the angle is 60 degrees, checks :-)
