Final answer:
The value of x is 11
Step-by-step explanation:
To find the value of x in the equations Measure E = 5x + 10 and Measure F = 7x - 12, where Measure E and Measure F are vertical angles, we can set the two equations equal to each other:
5x + 10 = 7x - 12
Next, we can simplify the equation by subtracting 5x from both sides:
10 = 2x - 12
Then, we can add 12 to both sides:
22 = 2x
Finally, we can divide both sides by 2 to solve for x:
x = 11