Only a true puzzle champion can solves this tricky brainteaser A recent maths puzzle shared online requires you to put your school cap back on and remember those dreaded algebra lessons.
Social media user Pro Brain Teaser posted yet another tricky brainteaser earlier this month on X (formerly Twitter) and had more than 300 responses from their eager followers.
The easiest tactic is to first work the value of letter B, which will then be able to tell you what value the letter C corresponds to.
Although it might seem straightforward to some - all you have to do is fill in one blank number - there's a bit of a working out to do to first to find the correct answer.
The vast majority of users were clearly up on their algebra, with one person even stating that this puzzle was, "very, very easy".