What is the value of x in the measure of the angle (2x + 13)°​

Vertical angles are equal by definition. So we can solve:

4x -7 = 2x + 13

4x = 2x + 20

2x = 20

x = 10

Since "x = 10," we can plug it back into either equation and see that the value of one of the vertical angles is 33 degrees.

So, the sum of the 2 angle measures is 33 + 33 = 66

Step-by-step explanation:

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did you get the answer?