SOLUTION: What the three angles of a triangle if the sum and difference of two angles are 100 degree and 20 degree, respectively

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Question 297595: What the three angles of a triangle if the sum and difference of two angles are 100 degree and 20 degree, respectively
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
x+y=100
x-y=20
2x=120
x=60
y=40
z=80