cryaoticshots12 cryaoticshots12

03-09-2021
Mathematics

contestada

Solve for x…………………………..

Solve for x class=

Respuesta :

preciousnosipho80 preciousnosipho80

06-09-2021

Answer:

15x + 15° = 3x + 9° + 78° (exterior angle is equal to the sum of the opposite interior angles)

15x - 3x = 9° + 78° - 15 °

12x = 72°

12x÷12 = 72°÷12

x = 6

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