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Section 7-2 : Linear Systems with Three Variables

Find the solution to each of the following systems of equations.

  1. \(\begin{align*}2x + 5y + 2z &= - 38\\ 3x - 2y + 4z &= 17\\ - 6x + y - 7z &= - 12\end{align*}\) Solution
  2. \(\begin{align*}3x - 9z &= 33\\ 7x - 4y - z &= - 15\\ 4x + 6y + 5z &= - 6\end{align*}\) Solution