SOLUTION: If the base angle of an isosceles triangle is (2x+1)°, then the vertex angle equals how many degrees?

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Question 1063044: If the base angle of an isosceles triangle is (2x+1)°, then the vertex angle equals how many degrees?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Let's call the vertex angle, V.
V%2B%282x%2B1%29%2B%282x%2B1%29=180
V%2B4x%2B2=180
V=178-4x