In the figure below, angle y and angle x form vertical angles. Angle y forms a straight line with 80 degrees angle and the 60 degree angle. write and solve the equation to determine the measure of angle x

Angle x would be 40 since if you add the 2 known degrees 60 and 80 you would get 140, and since a triangle will always be 180 degrees added together and when you subtract 140 from 180 you will get 40 which will be the last angle