When solving -1/3 (x − 15) = −4, what is the correct sequence of operations?
1. Multiply each side by -1/3, subtract 15 from each side
2. Multiply each side by −3, add 15 to each side
3. Multiply each side by -1/3 , add 15 to each side
4. Multiply each side by 3, subtract 15 from each side