This simple algebra equation is the latest **brainteaser**, that baffled the internet.

The puzzle with horses, boots and horseshoe, is tricky.

Post on Facebook has more than 568,000 comments and over 14,600 shares.

The answers to the ‘seemingly’ easy formula varied.

Farther down is the answer…

The first equation shows that the value of a horse is 10.

The second, featuring two horseshoes and a horse, is 4.

The third, tells us that the cowboy boot is 2.

And finally the answer is 1 + (10×2) = 21.

Michaele Jordan2016/09/08 at 23:23No. The first line shows us that a horse is worth 10 (3 horses = 30)

The second line shows us that a PAIR of horseshoes is worth 4 (a horse, 10 + 2 pairs of horseshoes =18)

The third line shows that a PAIR of boots = 2 (1 pair of horseshoes, 4, – 1 pair of boots = 2)

But lines two and three both deal in pairs. No value has been explicitly assigned to a single horseshoe, or a single boot, but since the pairs consist of identical objects, we can deduce that a single horseshoe has half the value of a pair of horseshoes, and similarly a single boot has half the value of a pair of boots.

Line fours shows only 1 boot (half of 2) plus 1 horse (10) times only one horseshoe (half of 4)

So 1 + 10 x 2.

I see above that the equation should be read 1 + (10 x 2). I read it (1 + 10) X 2. But looking up PEMDAS it does say that multiplication outranks arithmetic, rather than simply working left to right as I was taught (or at least allowed) as a kid.