Answer :

Answer:

x = 17

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Sum the 3 angles and equate to 180, that is

6x - 15 + 4x - 7 + 2x - 2 = 180, that is

12x - 24 = 180 ( add 24 to both sides )

12x = 204 ( divide both sides by 12 )

x = 17

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