Solve this Algebra-inspired puzzle to gain the coordinates of a quick, easy hide.
You'll have to have a strong understanding of linear algebra to solve this. This can be done by hand but use of a graphing calculator or computer might help. This puzzle will rely on solving systems of linear equations (which you can Google for help.) Using a matrix to solve this puzzle might simplify it considerably.
Here are some time lines you might want to consider;
A) web based rref matrix calculator http://www.math.purdue.edu/~dvb/matrix.html "5 minutes"
B) TI graphing calculator using matrix function. Directions: fill in matrix, select rref (your matrix name), read the row reduced answer "15 minutes"
C) Linear combination or Substitution using long hand. Refer to high school math text:) "45+ minutes"
You can check your answers for this puzzle on Geochecker.com.