Solve the System of Equations $$\begin{aligned}x _ { 1 } - x _ { 2 } + 8 x _ { 3 } & = - 107 \\6 x _ { 1 } + x _ { 3 } & = 17 \\3 x _ { 2 } - 5 x _ { 3 } & = 89\end{aligned}$$

question 27

Multiple Choice

Solve the system of equations.
- $$\begin{aligned}x _ { 1 } - x _ { 2 } + 8 x _ { 3 } & = - 107 \\6 x _ { 1 } + x _ { 3 } & = 17 \\3 x _ { 2 } - 5 x _ { 3 } & = 89\end{aligned}$$

• A) \(( 5,8 , - 13 )\)
• B) \(( 5 , - 8 , - 13 )\)
• C) \(( - 5,8,13 )\)
• D) \(( - 5 , - 8,13 )\)

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Definitions:

Bed-wetting

A condition often seen in children where involuntary urination occurs during sleep beyond the age when bladder control usually occurs.

Outgrow

To develop or mature beyond a certain phase or size, often implying improvement or progress.

Sleep-walking

A sleep disorder causing people to get up and walk around or perform other complex behaviors while still mostly asleep, typically occurring during deep sleep.

Co-sleeping

The practice where parents and infants sleep in close proximity to one another, typically in the same bed, to facilitate breastfeeding and bonding.