ppl on are so annoying yall get mad at ppl for posting random questions which doesnt have anything to do with u, but when ppl post a real question yall dont be trying to answer it

Ikr it's so relatable..

I know its annoying

Explanation:

in 1897, pershing became a tactical officer at west point, and that's where he was given the nickname "black jack." pershing's first name is "john," for which "jack" is a nickname, and he was a white man who commanded black troops. hence "black jack".

for this case we have the following equation:

we apply distributive property to the terms within parentheses.

subtracting 2 on both sides of the equation: