
Samantha T. answered 01/10/23
High School English and Public Speaking Tutor
To find out how many baseballs cards Josh has now, we need to add up how many he had yesterday and how many he got today.
m is the amount he had yesterday. He got 25 today. So it's m + 25. We don't currently know the total number of baseball cards he has today, so we can let another letter represent this amount, like x, for example. So the full expression is m + 25 = x.