What is the best primary source about the fall of berlin wind

A journal of someone who was presen at the fall of the wall. This is the best source because the person eye- witnessed the event and would know the exact truth about the event.

Explanation:

Hope this helps!

substitute y = 2x - 4 to x + 2y = 12:

x + 2(2x - 4) = 12     use distributive property

x + (2)(2x) + () = 12

x + 4x - 8 = 12     add 8 to both sides

5x = 20     divide both sides by 5

x = 4

put the value of x to the first equation:

y = 2(4) - 4

y = 8 - 4

y = 4

answer: i think it is saying that “the young man hopes she will be free. him escape signal him the door with the lady give him a ring run away with him.

explanation: i ask myself in my head and think and think until i found this