Respuesta :

cocoabeanz

Answer:

x=20

Step-by-step explanation:

The angles are opposites, so they should be equal.

60=x+40

x=60-40

x=20

gmany

Answer:

x = 20

Step-by-step explanation:

Vertical Angles are the angles opposite each other when two lines cross.

We have the vertical angles. Vertical angles are congruent. Therefore the angle measures are equal.

We have the equation:

x + 40 = 60              subtract 40 from both sides

x + 40 - 40 = 60 - 40

x = 20

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