Final answer:
The given equation (x + 29) is in (7x - 13) is ambiguous. If the interpretation is that both expressions are equal to each other, by solving the equation algebraically we find that x equals 7. This corresponds to option C).
Step-by-step explanation:
The question requires us to solve for the value of x. Given that (x + 29) is in (7x - 13) and considering the options A) 5 B) 6 C) 7 D) 8, none of the provided references directly solves this equation. However, if we interpret "in" to mean that (x + 29) is equal to (7x - 13), we are then able to solve for x algebraically.
Let's equate the two expressions:
x + 29 = 7x - 13
To find x, we will first gather all the x terms on one side of the equation and the constant terms on the other side:
7x - x = 29 + 13
6x = 42
From this, we can solve for x by dividing both sides by 6:
x = 42 / 6
x = 7
Thus the value of x is 7, which matches option C).