Respuesta :

Answer:

x = 35

Step-by-step explanation:

Because the angles are vertical angles, they must be equal.

3x + 7 = 112

3x = 105

x = 35

Check

3(35) + 7 = 112

112 = 112 Correct

The answer is x=35
You plug in 35 to X and then add 7
((3•35)+7) = 112
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