In the figure below, angle y and angle x form vertical angles. angle y forms a straight line with the 60° angle and the 70° angle. a straight line is shown and is marked with three angles. the first angle measures 60 degrees. the second angle measures 60 degrees. the third angle is labeled y. the line between the 70 degree angle and angle y extends below the straight line. the angle formed is labeled angle x. wrie and solve an equation to determine the measurements of angle x
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60° + 80° + y = 190° 140° + y° = 190 
-140           -140 x = 50° x = y because they are the vertical angles
The measure of angle x is 50.

If x and y are vertical angles, then their sum will be 90

x + y = 90.

If the angles y, 60, and 80 are on a straight line, then their sum will be 180:

y + 60 + 80 = 180

First, solve for the second equation by getting y on one side of the equation:

y = 40

Now, if you plug 40 into y in the first equation, you will be able to figure out x:

x + 40 = 90
x = 50

The answer is part a: use

The answer is the first one