SOLUTION: What is x in the triangle {{{40 degrees, 70 degrees and x+78}}}

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Question 964681: What is x in the triangle 40+degrees%2C+70+degrees+and+x%2B78
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
The sum of the angles in a triangle sum to 180.
40%2B70%2Bx%2B78=180
188%2Bx=180
Solve for x.