Any geniuses here?

[.sarah]

Well I can tell you the answer to the first and last one and then maybe explain to you how I got it??

Okay

b-3=2(a+4) then solve for b

Distribute first, so:
b-3=2a+8

Get b alone by adding 3 to both sides:
b=2a+11

So for the first question b. is the answer. I'll try more if you are still stumped, I am eating dinner right now.

Ah, thanks! I didn't do the distributive and that was the problem.