What is the correct equation for this?

Dean and karlene get paid to write songs. dean is paid a one-time fee of $20 plus $80 per day. karlene is paid a one-time fee of $25 plus $100 per day. write an expression to represent how much a producer will pay to hire both to work the same number of days on a song.

How do i put 3(x+7) in distributive property

How do you write y-10=2 (x-8) in standard form