A:4x﹣3(﹣9﹣3x)=3
B:4x+3(﹣9﹣3x)=3
C:4x﹣3(﹣9+3x)=3
D:4x+3(﹣9+3x)=3
Megan failed to read Huw's letters because _______.
下列两个函数完全相同的是( )