Determine the value of x that would make the diagram true

The value of a triangle is 180 degrees, so the values of x have to all equal up to 180. So ignore where it says times 1, then break 180 into 3 parts. 180 divided by 3 =60, the three sides to the triangle is 3 60's divide two of them by 2 and you get 20.                                                                                                                                                                                                                                                                                                                       Answer: (2x -1 = 19) and (2x +1=21) and the last x=60