Step-by-step explanation:
2: Distributive property (the -2/3 was distributed to (x+12) )
3:combine like terms (the -2/3x was combined with +1/3x)
4:addition property of equality (the -8 was added to both sides of the equation)
5:transitive property (divided both sides by -1/3 to get x alone)
6:symmetric property (rewrote the answer)