Solve Each System by Using Either the Substitution or the Elimination-By-Addition

question 131

Multiple Choice

Solve each system by using either the substitution or the elimination-by-addition method, whichever seems more appropriate. $$\left( \begin{array} { l } 3 x - 2 y = 1 \\9 x - 6 y = 7\end{array} \right)$$

• A) \(\{ ( x , y ) \mid 3 x - 2 y = 1 \}\)
• B) \(( - 7,7 )\)
• C) \(( 7,6 )\)
• D) \(( 4 , - 3 )\)
• E) inconsistent