Use the Substitution Method to Solve the Following System $$\left\{ \begin{array} { c } 7 a + 7 b = 42 \\a = 46 - 9 b\end{array} \right.$$

Multiple Choice

Use the substitution method to solve the following system. If the equations of the system are dependent, or if the system is inconsistent, so indicate. $$\left\{ \begin{array} { c } 7 a + 7 b = 42 \\a = 46 - 9 b\end{array} \right.$$

A) $( 1,5 )$
B) $( 1 , - 5 )$
C) $( - 1,5 )$
D) The equations are dependent.
E) The system is inconsistent.