Answer: Choice D
Step-by-step explanation
First, subtract Ax from both sides:
Ax - Ax + By = C - Ax
By = C - Ax
Now, divide B from both sides:
=
y =
Finally, to get an equivalent answer for an answer choice, divide each term by B on the right side of the equation:
y =
-
or
y = -
+
or
y =
+
This answer is the same as answer choice D, and so D is the correct answer.