Question

Explain what the variable represent in an addition or subtraction expression.

Answer 1

The variables represented in an addition or subtraction equation expression is the letter associated with a number, it acts as a place holder for that unknown value that is multiplyed by the coefficient or number infront of the letter.

Answer 2

A variable is just a letter that represents a number. It doesn't really matter what letter it is (unless the directions say so). Well its sort of hard to explain but I hoped this helped you out a bit. ^^''