-8 - x = x - 4x
how does x equal to 4 and how do u do this

Hi my sisters and brothers can tell me the answer because i don’t understand the question

Abe is a triangle. can you use the sss postulate or the sas postulate to prove triangle abc = triangle aed? by sss only neither apply both apply by sas only

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees