Question

If n represents a number then how do you write an expression for 7 less than four times the difference of n and 5?

Answer 1

`n-5` is the difference of `n` and 5

`4(n-5)` this is four times it

`4(n-5)-7` and this is seven less than it

`4n-20-7=4n-27` if you expand it.