Hello! I would love to help!
The first statement is given, because it is given information. The second statement uses the Substitution Property of equality because they are substituting x for 8. The third step uses the Subtraction Property of Equality because you are subtracting 88 from both sides. Next, it is the division property of Equality because they are dividing both sides by -6. Last, it is the symmetric property of Equality because that states that if a=b, then b=a, or basically that they still equal each other when flipped.
So, the answer that coincides with this would be the second one.
Hope this helps! Comment if you have any questions, proofs can be tricky at first!
