Use Cramer S Rule to Solve the System of Equations $\left\{ \begin{array} { l } x + y = 8 \\x - y = 4\end{array} \right.$

question 118

Short Answer

Use Cramer s rule to solve the system of equations, if possible. If the equations of the system are dependent, or if the system is inconsistent, so indicate. $\left\{ \begin{array} { l } x + y = 8 \\x - y = 4\end{array} \right.$

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Definitions:

Common Event

An occurrence that is not unusual or extraordinary, often happening regularly or frequently within a given context or environment.

Echolocation

A biological sonar used by several kinds of animals to navigate and locate prey by emitting sounds and listening to their echoes.

Coevolution

The process by which two or more species influence each other's evolutionary development through natural selection.

Moths

Insects related to butterflies, belonging to the order Lepidoptera, typically flying at night and attracted to light.