question_answer

Choose the dependent system from the following.

A)  \[\text{m}+\text{n}=\text{7}\]\[\text{3m}+\text{3n}=\text{21}\]

B)                         \[\text{3x}-\text{2y}=\text{5}\]\[\text{2x}-\text{3y}=\text{7}\]

C)  \[\text{3x}-\text{3y}=\text{18}\]\[\text{x}-\text{y}=\text{1}0\]

D)   \[\text{2x}+\text{y}=\text{6}\]\[\text{4x}-\text{2y}=\text{4}\]