Answer:
B. 3x - y = 36
Step-by-step explanation:
Standard form of an equation is Ax + By = C.
Let's get it into that form:
x = 1/3y + 12
x - 1/3y = 12
To make it look like those answers, we have to multiply it all by 3.
3x - y = 36
Our correct answer is B. 3x - y = 36.
