Respuesta :

check the picture below.

bear in mind that, arcs get their angle measurement from their central angle.  Thus, those two are equal.
Ver imagen jdoe0001

Answer:

x=7

Step-by-step explanation:

Subtract 10x

from both sides of the equation.

12x−7−10x=7

Subtract 10x

from 12x

2x−7=7

Add 7

to both sides of the equation.

2x=7+7

Add 7 and 7

2x=14

Divide each term by 2 and simplify.

x=7

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