One potential drawback of just-in-time (jit) production is that

One potential drawback of just-in-time (jit) production is that the company would face disruptions in the supply chain if the supplier of raw materials could not deliver the required materials on time.

Explanation:

The management strategy that aligns raw-material orders from suppliers directly with production schedules. This strategy is employed in many companies to reduce the wastage and to increase the efficiency. It requires an accurate forecast of the demand by the production team of the firm so that the production requirements can be initiated accordingly.

In spite of all the advantages like reducing the inventory costs (like warehousing, etc.) or easily spotting production mistakes, great focus on quality, etc, this method also has the following disadvantages,

u = 30

continuing your method

= +

subtract from both sides

= - thus

= -

= ⇒ u = 30