How exactly step by step do you use distributive property in a equation?

The Distributive Property is an algebra property which is used to multiply a single term and two or more terms inside a set of parentheses. Take a look at the problem below.

    2(3 + 6)

Because the binomial "3 + 6" is in a set of parentheses, when following the Order of Operations, you must first find the answer of 3 + 6, then multiply it by 2. This gives an answer of 18.

    2(3 + 6)
    2(9)
    18

! Incorrect Method !

It would be incorrect to remove the parentheses and multiply 2 and 3 then add 6, as this would give an incorrect answer of 12.

    2(3 + 6)
    2 * 3 + 6
    6 + 6
    12

3(x+2)=3x+6
where x is any possible number

lets say the question is 9(3x-5)=36
1.) 9*3x=27x
2.) 9*5  =45
3.) 27x-45=36
4.)27x= 81
5.)x=3