Final answer:
To find the value of x that makes lines u and v parallel, we need to solve the equation 16z - 6 = x.
Step-by-step explanation:
To find the value of x that makes lines u and v parallel, we need to solve the equation 16z - 6 = x. Since parallel lines have the same slope, the coefficient of z in line u must be the same as the coefficient of x in line v. Therefore, we set 16z = x. To solve for x, we can substitute the value of z into the equation: 16z - 6 = x.