Solve the System $$\left( \begin{array} { c } 2 x& - &y &+& z& =& - 6 \\3 x& -& 2 y &+& 5 z& =& - 17 \\3 x &+ &y &-& 5 z& = &9\end{array} \right)$$

question 205

Multiple Choice

Solve the system. $$\left( \begin{array} { c } 2 x& - &y &+& z& =& - 6 \\3 x& -& 2 y &+& 5 z& =& - 17 \\3 x &+ &y &-& 5 z& = &9\end{array} \right)$$

• A) x = 4, y = 5, z = -1
• B) x = 2, y = 4, z = -1
• C) x = -1, y = 8, z = 0
• D) x = -1, y = 2, z = -2

---

Definitions:

Sales Revenue

The income received by a company from its sales of goods or services, before any expenses are deducted.

Unit Selling Price

The price levied for an individual unit of a product or service.

Break-even Analysis

A financial calculation to determine the sales volume at which a business neither makes a profit nor a loss.

Cost-volume-profit Analysis

An accounting method used to determine how changes in costs and volume affect a company's operating income and net income.