Solve the System $$\left( \begin{array} { rrrrrr } 4 x &+ &3 y& -& z & = &- 8 \\&&3 x &-& 5 y & = &12 \\&&4 x &+& 5 y & = & - 19\end{array} \right)$$

question 158

Multiple Choice

Solve the system. $$\left( \begin{array} { rrrrrr } 4 x &+ &3 y& -& z & = &- 8 \\&&3 x &-& 5 y & = &12 \\&&4 x &+& 5 y & = & - 19\end{array} \right)$$

• A) x = 2, y = 0, z = -7
• B) x = 2, y = -2, z = -7
• C) x = -1, y = -3, z = -5
• D) x = -1, y = -5, z = -2

---

Definitions:

Alcohol Consumption

Alcohol Consumption pertains to the intake of alcoholic beverages by individuals, which can have various social, cultural, and health implications.

Driving Impairment

A reduction in the ability to operate a vehicle safely, often due to factors like alcohol, drugs, fatigue, or health issues.

Independent Variable

In an experiment, the variable that is manipulated or changed to test its effect on the dependent variable.

Cause-effect Relationships

The connection between two events where one event makes the other happen.