Question

simply this
4y−y

Answer 1

4 millions dollars minus one million dollars is 3 million dollars

Answer 2

in my example \(y\) as a million dollars, but it works with anything else as well
4 bottles of beer minus one bottle of beer is 3 bottles of beer for example

Answer 3

You can also see it as 4-1y since they are like terms you can solve it like that 4y-1y=3y

Answer 4

ahh the "invisible 1"