Question

Which of the following math statements contain variable(s)? Check all that apply.

A. 9 - 1 = 8
B. 9 - ____ = 8
C. 9 - 1 = x
D. x - ____ = 8

Answer 1

The answer would be B,C, and D because they are unknown numbers which would be converted into a variable

Answer 2

since variables are unknown numbers: b c d have variables