Read the Last Line Twice Before Answering: Math Puzzle Answer

Did you get it right?

This chalkboard puzzle asks you to solve the final line carefully: 7 + 7 x 3 – 7 = ?

The Answer

The correct answer is: 21.

Here is why

1. Do multiplication first: 7 x 3 = 21.
2. Then add the first 7: 7 + 21 = 28.
3. Then subtract the last 7: 28 – 7 = 21.

Why people miss it

The examples make the puzzle feel routine, so many people rush the final line and forget the order of operations.

What answer did you get before checking?