Solve
- $$\begin{array} { l } x - y + z = - 8 \\x + y + z = 0 \\x + y - z = 2 \\( - 1 , - 3,4 )\end{array}$$

question 29

Multiple Choice

Solve.
- $$\begin{array} { l } x - y + z = - 8 \\x + y + z = 0 \\x + y - z = 2 \\( - 1 , - 3,4 ) \end{array}$$

• A) Yes
• B) No

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Definitions:

Longitudinal

Pertaining to research or studies that follow subjects over a period of time to observe changes or developments.

Same Group

A collection of individuals or items that are considered together because of shared characteristics or a common purpose.

Older

A comparative term used to describe someone or something of greater age or the process of aging or becoming older.

Cohort Effect

The influence that shared characteristics or experiences of a group have on the results of a study, due to members of the group having been born at or around the same time.