Question 0103a

Equations and Inequalities
System of Linear Equations

Question

Solve the following system of linear equations, giving your answer in exact form.
−2y+z=−42x−y−4z=−7x+2y=−3\begin{align*} && \quad - 2 y + z &= -4 \\ && \quad 2 x - y - 4 z &= -7 \\ && \quad x + 2 y &= -3 \\ \end{align*}

Attempt

x={x=}
y={y=}
z={z=}

Answer

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