solution
A solution is defined to be a certain condition which meets all the "rules" of an entire system
solution
A solution is defined to be a certain condition which meets all the "rules" of an entire system
Elementary operations are those operations consisting of the following. Interchange the order in which the equations are listed. Multiply any equation by a nonzero number. Replace any equation with itself added to a multiple of another equation.
Elementary Operations do not change the set of solutions of systems of equations.