Solve the System by the Addition Method, If Possible $\left\{ \begin{array} { l } 4 ( x + y ) = y + 17 \\7 ( x + 1 ) = y + 18\end{array} \right.$

Multiple Choice

Solve the system by the addition method, if possible. If a solution exists, give the value of x. $\left\{ \begin{array} { l } 4 ( x + y ) = y + 17 \\7 ( x + 1 ) = y + 18\end{array} \right.$

A) 2
B) 5
C) 4
D) $- 1$
E) no solution