Solve the System of Equations Using the Addition Method $$\begin{array} { l } x - y + z = - 3 \\x + y + z = - 5 \\x + y - z = 5\end{array}$$

question 33

Multiple Choice

Solve the system of equations using the addition method.
- $$\begin{array} { l } x - y + z = - 3 \\x + y + z = - 5 \\x + y - z = 5\end{array}$$

• A)(1, -5, -1)
• B)(-5, 1, -1)
• C)(-1, -5, 1)
• D)(1, -1, -5)

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Definitions:

Deltoid

A large, triangular muscle covering the shoulder joint that is responsible for lifting the arm and giving the shoulder its range of motion.

Muscle Fibers

The cells of muscles that contract to produce movement, consisting of myofibrils, which are themselves composed of sarcomeres, the basic unit of muscle contraction.

Contusion

A contusion is a medical term for a bruise, which is a mark on the skin caused by blood trapped under the surface after an injury to the small blood vessels within the dermis or subcutaneous tissues.

Sprain

An injury to ligaments caused by being stretched beyond their normal capacity and possibly torn.