Solve the System by Using the Elimination-By-Addition Method $$\left( \begin{array} { l } 7 x &-& y &= &29 \\6 x &+ &3 y& = &21\end{array} \right)$$

Short Answer

Solve the system by using the elimination-by-addition method. $$\left( \begin{array} { l } 7 x &-& y &= &29 \\6 x &+ &3 y& = &21\end{array} \right)$$ If the equations of the system are dependent, or if a system is inconsistent, so indicate. In those cases enter dependent or inconsistent . Otherwise, enter your answer as an ordered pair ( x , y ).