From the starting equation to the first step we can see that the only change was made on the left side of the equation.
We can see that the distributive property of multiplication is being applied to the parenthesis.
So, the "-2"is being distributed to the 5x and the 8.
So, the correct options in step 1 is distribute.
In step 2, we can see that the 6x on the left side are not there anymore and the -10x on the left turned into -16x. That is, we substracted 6x from both sides. Thus, the correct option on Step 2 is substract.
In Step 3, the -16 is not on the left side anymore and the 30 from the right side is in place of the 14. So, we added 16 to both sides in this step, and the correct alternative is add.
Now, on Step 4 we had -16x that turned into x and a denominator of -16 appeared on the right side, so we have divided both sides by -16. The correct alternative on Step 4 is divide.