Solve for x…………………………..

John Fultz asked Nov 24, 2022

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4 votes

John Fultz asked Nov 24, 2022

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9 votes

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

MarioH answered Nov 28, 2022

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