Question

Write an algebraic expression for each verbal expression
1. a number decreased by 8"

Answer 1

Answer:

$x-8$

Step-by-step explanation:

the "decreased by 8" part says $-8$. We don't know the number, so we put a variable before the $-8$.

Side note:

You could have the variable any letter of the English alphabet or the Greek alphabet.

Answer 2

Write an algebraic expression for a number decreased by 8
Answer: x-8