Answer:
x = 7
Step-by-step explanation:
The Triangle Sum Theorem tells us that the sum of the measures of a triangle's interior angles is 180. Using this information, we can make an equation to solve for x.
82 + 9x - 6 + 6x - 1 = 180
75 + 15x = 180 (Combine like terms)
15x = 105 (Subtract 75 from both sides)
x = 7 (Divide both sides by 15)
We can plug the value of x back into the equation to make sure of this answer.
