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you will write a program to solve linear equations given in upper triangular form. There are N equations, and N unknowns. This is equavalent to the following matrix multiplication [A][X]=[B], where A is a square matrix (N by N), X and B are vectors with size N.

Back Substitution:

First, find the last unknown (Xn ) in the last equation.

Then substitute its value in the equation just above it and find Xn-1 .

Repeat back substitution until all X's are found.

Your program should dynamically allocate memory for the data structures.

please help me with my homework because i have failed to write anything.