Problem: Sean's mom asks him how long his homework will take. He tells her that he needs to read for 25 minutes and also do some
math problems that will take m minutes. All together, his homework will take h minutes. Write an equation for the number of minutes Sean's homework will take h, if his math problems take m minutes.
So, if his homework takes 25 minutes, and his math takes m minutes, and all together it takes h minutes, then here's the equation we can set up: 25 + m = h OR m + 25 = h
Either way works, because this is an addition equation. If he does his math work first, then m + 25 = h. If he does his reading work first, then 25 + m = h.