Find the Y -Coordinate of the Solution of the Following $\left\{ \begin{array} { l } x + 7 y - 3 z = - 9 \\2 x - y + z = 6 \\- x + y - z = - 3\end{array} \right.$

question 143

Multiple Choice

Find the y -coordinate of the solution of the following system. $\left\{ \begin{array} { l } x + 7 y - 3 z = - 9 \\2 x - y + z = 6 \\- x + y - z = - 3\end{array} \right.$

• A) y=-3
• B) y=-9
• C) y=8
• D) y=4

---

Definitions:

Pitting Edema

A condition where pressing on the swollen skin leaves a pit or indentation, often signaling fluid accumulation in the tissues.

Pregnant Patient

A woman who is in the state of carrying a developing fetus within her uterus.

Varicose Veins

Abnormally enlarged and twisted veins, often appearing in the legs, caused by weakened vein walls and valves.

Foot Cramps

Involuntary contractions or spasms of the muscles in the foot, often causing sudden pain and discomfort.