Question

1. Write an expression for "n decreased by 3."

Answer 1

n-3

Explanation:

Answer 2

Answer: The required expression is
`n-3.`

Step-by-step explanation: We are given to write an expression for the following statement :

"n decreased by 3."

We know that

if we are decreasing a units from some quantity b, then we should subtract a from b.

This is written as follows :

`E=b-a.`

Therefore, for the given expression, we should subtract 3 from n.

This can be written as :

`E=n-3.`

Thus, the required expression is
`n-3.`