SOLUTION: how do you find the measurements of a triangles angles given such things as 2x, 2x-10, and 2x+20?

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Question 245346: how do you find the measurements of a triangles angles given such things as 2x, 2x-10, and 2x+20?
Answer by dabanfield(803) About Me  (Show Source):
You can put this solution on YOUR website!
The sum of the angles of a triangle is 180 so:
2X + (2X-10) + (2x+20) = 180
Solve for X then substitute that value back in the three expressions for the angles above.