To use sad similarity, AB and CB must be ? DB and EB respectively

What is the value of x when x + 7 = 21?

Val and tony get paid per project. val is paid a project fee of $44 plus $12 per hour. tony is paid a project fee of $35 plus $15 per hour. write an expression to represent how much a company will pay to hire both to work the same number of hours on a project.

How to simply and write the answer n a whole number