Respuesta :

Kaikerscupcake
Remember the definition of vertical angles.

The angle between 7x+7 and 112 are vertical. They are congruent and with the same measure. 

7x +7= 112

Subtract 7 on both sides. 

7x= 105

Divide both sides by 7. 

x= 15

I hope this helps!
~kaikers


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