To find the inverse, you can either do this:
y=(x-2)/3 *switch x and y
x=(y-2)/3 *multiply 3 on both sides
x(3)=((y-2)/3)(3) *the three cancels out on the right side
3x=y-2 *add the 2 on both sides
3x+2=y-2+2 *simplify
Final answer should be : 3x+2=y (inverse)