Chapter 5: Systems of Equations

5.6 Solving for Four Variables

Three-dimensional space and time problems. Have fun solving these!  🙂

Questions

  1. \left\{ \begin{array}{rrrrrrrrr} t&+&x&+&y&+&z&=&6 \\ t&+&2x&+&2y&+&4z&=&17 \\ -t&+&x&-&y&-&z&=&-2 \\ -t&+&3x&+&y&-&z&=&2 \end{array} \right.
  2. \left\{ \begin{array}{rrrrrrrrr} t&+&x&-&y&+&z&=&-1 \\ -t&+&2x&+&2y&+&z&=&3 \\ -t&+&3x&+&y&-&z&=&1 \\ -2t&+&x&+&y&-&3z&=&0 \end{array}

<a class=”internal” href=”/intermediatealgebraberg/back-matter/answer-key-5-6/”>Answer Key 5.6

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