Solve the System of Linear Equations Using Matrices $$\left\{ \begin{array} { r } - x + y = 3 \\- 3 x + y = 7\end{array} \right.$$

question 97

Multiple Choice

Solve the system of linear equations using matrices.
- $$\left\{ \begin{array} { r } - x + y = 3 \\- 3 x + y = 7\end{array} \right.$$

• A) \(( 1 , - 2 )\)
• B) \(( 2 , - 1 )\)
• C) \(( - 2,1 )\)
• D) \(\varnothing\)

Understand parental or guardian influence on child nutrition and physical health.

Learn about the relationship between obesity, self-esteem, and social skills in children.

Recognize the significance of interventions in preventing and managing childhood obesity.

Understand the role and types of motor skills in children's physical, cognitive, and athletic development.

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