Solve the System of Equations by Substitution for Real Values $\left\{ \begin{array} { l } x ^ { 2 } + y ^ { 2 } = 8 \\x - y = 4\end{array} \right.$

question 112

Essay

Solve the system of equations by substitution for real values of x and y . $\left\{ \begin{array} { l } x ^ { 2 } + y ^ { 2 } = 8 \\x - y = 4\end{array} \right.$

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Definitions:

Aponeurosis

A flat, broad tendon-like structure that connects muscles to the parts they move or to other muscles.

Posterior Cruciate Ligament

A ligament in the knee connecting the femur (thighbone) to the tibia (shinbone), crucial for stabilizing the knee and preventing it from moving backward.

Anterior Cruciate Ligament

A key ligament within the knee joint that connects the femur (thighbone) to the tibia (shinbone), critical for stabilizing the knee.

Medial Collateral Ligament

A major ligament located on the inner side of the knee, providing stability to the joint by preventing it from overextending inward.