Question

4. What does it mean when solving an equation and your last line is 7 = 7?
A. It is impossible, I must have done something wrong.
B. It is a true statement and an identity, which means there are infinitely many solutions
C. It is a false statement, which means there are no solutions.
D. It is impossible, there is no variable in the last line.

Answer 1

It's a true statement

Answer 2

B