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Year 12 Specialist (Unit 3 & 4) Systems of linear equations

Simultaneous linear equations with more than two variables

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Questions
Question 1
162884

Solve the following system of three equations in three variables:
\[\begin{aligned}
x+y-z=4 \\
x-2 y+3 z=-6 \\
2 x+3 y+z=7
\end{aligned}\]

\(x=1,\;y= 2,\; z=-1\)

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