C++ program that can solve (ANY MATRIX) up to 15 equations with 15 unknowns. program should be able to read in the text file solve the matrix......put the result on the screen as well as write the results to a text file. YOU DONT HAVE TO DO BACK SUBSTITUTION ONLY SOLVE FOR THE VALUE OF ONE VARIBLE. Should open a text like this and make the calculation 2a 9b -c 3d = 81

a 2b 2c -6e = -23

5a 7b 2c -d 3e = 100

8a -b -4c -2d 9e = 71

3a 3b 8c d 9e = 178