Final answer:
The value of x is 7.
Step-by-step explanation:
To find the value of x, we set up an equation using the fact that angle M and angle N are complementary: (2x + 34) + (6x) = 90.
Expanding the equation, we get 8x + 34 = 90.
Subtracting 34 from both sides, we have 8x = 56.
Dividing both sides by 8, we find that x = 7. Therefore, the correct answer is x = 7.