Respuesta :

Answer:

3x - 7y = 9

Step-by-step explanation:

3x - 9 = 7y

Add 9 to both sides.

3x = 7y + 9

Now subtract 7y from both sides.

3x - 7y = 9 (answer).

gmany

The standard form: Ax + By = C.

3x - 9 = 7y       add 9 to both sides

3x = 7y + 9      subtract 7y from both sides

3x - 7y = 9