Solve the System $\left(\begin{array}{rll}x+2 y-5 z & = & -20 \\3 y-z & = & -1 \\3 y+3 z & = & 15\end{array}\right)$

question 209

Multiple Choice

Solve the system. $\left(\begin{array}{rll}x+2 y-5 z & = & -20 \\3 y-z & = & -1 \\3 y+3 z & = & 15\end{array}\right)$

• A) x = -2, y = 1, z = 4
• B) x = -3, y = 3, z = 7
• C) x = 1, y = 0, z = 7
• D) x = -3, y = 4, z = 4

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Definitions:

Celebrations

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The process of classifying and organizing information to make it easily retrievable and useful.

Mental Rotation

The cognitive ability to rotate mental representations of two-dimensional and three-dimensional objects in the mind's eye.

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The mental processes involved in gaining knowledge and comprehension, including thinking, knowing, remembering, judging, and problem-solving.