Final answer:
Without specific geometrical information or equations related to the lines l1 and l2, it's not possible to solve for the value of x that would make those lines parallel.
Step-by-step explanation:
The student's question is asking for the value of x that makes two lines parallel, denoted as l1 and l2. While the provided reference information discusses various mathematical and scientific concepts such as statistics, physics, and probability, none of them directly pertain to the parameters for parallel lines in geometry, which is most likely the correct context for this question. As there is no specific geometrical information or equations provided to solve for the value of x that makes l1||l2, the answer cannot be determined from the given reference information. Typically, in geometry, the solution would involve identifying corresponding angles or using slope criteria to determine whether two lines are parallel, but without such information, the question cannot be properly addressed.