Ineed with 38 and how you got the answer as i’m confused

What does x = in this equation x+3+2x=x+5

The sum of 5consecutive even numbers is 100. what is the first number in this sequence?

Traffic on saturday, it took ms. torres 24 minutes to drive 20 miles from her home to her office. during friday's rush hour, it took 75 minutes to drive the same distance. a. what was ms. torres's average speed in miles per hour on saturday? b. what was her average speed in miles per hour on friday?