Answer:
Transitive Property
Step-by-step explanation:
You can use it for example: a = b. b = c. So a = c (Transitive Property).
I hope you have heard about the congruency rules like SSS, SAS, ASA
Those are the least amount of information you need
Here is the equation you should use.
2(x+7) = -36
Just a friendly reminder that Black Lives Matter