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Tell whether the angles are vertical or adjacent and solve for x. Solve 11 and 12 for 20 points and brainest.

Tell whether the angles are vertical or adjacent and solve for x Solve 11 and 12 for 20 points and brainest class=

Respuesta :

fnej

Answer:

11) x = 45

12) x = 30

Step-by-step explanation:

11)

3x + x = 180

4x = 180

x = 45

12)

4x = 5x - 30

4x - 5x = -30

-x = -30

x = 30

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