I found the corresponding image as well as its statements and justifications that I have to match.
1. Given → RM = SN ; TM = TN
2. Reflexive → ∠T = ∠T
3. Addition Property of Equality → RM + TM = SN + TN
4. Betweeness → RT = ST
5. Substitution → RM + TM = RT, SN + TN = ST
6. SAS → Triangle RTN congruent to Triangle STM
7. CPCTE → RM = SN