what rule is -1-2=1?

Question

katrinakaif · Answer

That is not quite possible. 

-1 - 2 = -3 not +1

anonymous · Answer

not quite...... impossible*

anonymous · Answer

$$(-1)-2\neq1$$

anonymous · Answer

"that is not quite possible"

inferring that is possible? lolol

anonymous · Answer

maybe you mean to say -1-(-2)=1

anonymous · Answer

but my teacher said it was possible

anonymous · Answer

did you miss a negative sign? when posting the question?

anonymous · Answer

no

katrinakaif · Answer

You may have written the problem incorrectly.

anonymous · Answer

oh, well then your teacher lied!

anonymous · Answer

because believe me when i say -1-2=-3 not 1

paxpolaris · Answer

$$-1-2 = -3$$$$-1--2=1$$

directrix · Answer

@Shiny --> Would you check and see it the problem is written correctly?

anonymous · Answer

ITS WRITTEN CORRECTLY

directrix · Answer

Okay, let's look at it:  

what rule is -1-2=1?

The equation reads in words as negative one minus two equals one.

That is not true because negative one minus two equals negative one.

Because the statement is false is why there is no rule.

directrix · Answer

And, that's why I asked you to check the problem. It is so easy to type the wrong number or symbol.