Problem 2

Consider the following system of linear equations. Identify which variables
are leading and which are free. Write down the general solution of the system.

Solve[{x[1]+3x[2]-2x[3]+4x[5]==5,-x[3]+2x[4]+3x[6]==1,
2x[5]+x[6]==2},Table[x[i],{i,6}]]