(Solved): Use the echelon method to solve the system of two equations in two unknowns. ...

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Use the echelon method to solve the system of two equations in two unknowns. Check your answers. $$\begin{array}{l}3x?2y=0\\ 6x?y=9\end{array}$$ Select the correct choice below and fill in any answer boxes within your choice. A. The solution of the system is (Simplify your answer. Type an ordered pair.) B. There are infinitely many solutions. The solution is $$y$$ ), where y is any real number. C. There is no solution.