QuestionSolve the system of equations by the substitution method. $$\left\{\begin{array}{c} 15 x+5 y=17 \\ -3 x=y+6 \end{array}\right.$$
Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The solution is $\square$ . (Type an ordered pair. Simplify your answer.) B. There are infinitely many solutions. C. There is no solution.