A rule of thumb in these type of equations (at least, for me, personally) is to bracket off the like term. We’ve got 3 things here, so we gotta bracket them. (5)+(10s-8s) So now, we’ve got them separated. Next, we perform our given function. In this case, we subtract 8 from 10, leaving us with 2. (5)+(2s) As we no longer have any like terms, to be simplified or otherwise, we open the brackets: 5+2s And you’ve obtained your answer! Answer= 5+2s