Rewrite the equation in Ax+BY =C form please and thank you

Answer:
3x - y = 20
Step-by-step explanation:
First, distribute the 3 among everything within the parentheses to get
y + 2 = 3x - 18.
Next, add 18 on both sides to get
y + 20 = 3x.
Now subtract y on both sides in order to move it.
Your answer is now: 20 = 3x - y, or
3x - y = 20.
Hope this helps :)