americatello24 americatello24

25-01-2019
Mathematics

contestada

how do u solve this??

how do u solve this class=

Respuesta :

MrsStrong MrsStrong

28-01-2019

Answer:

x=22

Step-by-step explanation:

To solve, use an important geometry theorem.

The exterior angle of a triangle is equal to the sum of the two opposite interior angles.

Know this theorem, write 6x-7 = 103-x+2x and solve for x.

6x-7=103-x+2x

6x-7=103+x

5x-7=103

5x=110

x=22

Answer Link

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