Solve the System in Terms of the Arbitrary Variable X $$\begin{array} { l } x - 3 y + z = 35 \\3 x - y - z = 21\end{array}$$

question 445

Multiple Choice

Solve the system in terms of the arbitrary variable x.
- $$\begin{array} { l } x - 3 y + z = 35 \\3 x - y - z = 21\end{array}$$
$3 x - y - z = 21$

• A) \(\{ ( x , x - 14,3 x - 7 ) \}\)
• B) \(\{ ( x , x - 14,2 x - 7 ) \}\)
• C) \(\{ ( 0 , - 14 , - 7 ) \}\)
• D) \(\{ ( x , x - 14,2 x ) \}\)

---

Definitions:

Direct Labor-Hours

denotes the total hours worked directly on the production of goods, used in assigning labor costs to products or services.

Forming Department

Specific section within a manufacturing process where materials are shaped or formed as part of the product's construction.

Finishing Department

A sector in manufacturing where products undergo final processing, assembly, inspection, or packaging before being declared finished goods.

Predetermined Overhead Rate

A rate calculated at the beginning of a period by dividing estimated total overhead costs by an estimated allocation base, used to assign overhead costs to products or services.