Final answer:
To determine when the angles 4x + 25 and 8x - 30 are congruent, we set the expressions equal and solve for x, but the resulting value, 13.75, does not match any of the provided answer choices.
Step-by-step explanation:
To find the value of x such that the angles formed by the expressions 4x + 25 and 8x - 30 are congruent, we set the two expressions equal to each other:
4x + 25 = 8x - 30
To solve this equation, we subtract 4x from both sides:
25 = 4x - 30
Next, we add 30 to both sides:
55 = 4x
Finally, we divide both sides by 4 to find the value of x:
x = 55 / 4
x = 13.75
This value of x does not match any of the options provided (A, B, C, D), indicating a possible mistake in the question or the answer choices.