For me homework.

No, no.....it's -9

its 9 because a negitive minus a negitive equals a positive number! so who ever said the answer is -9 you should go back to school.

And you should not be so rude. People mess up at times.

(-7)-2=-9!

Type it on the calc.

When you take away a positive you make less,  so you make it more negative.  Proof:

$${\mathtt{\,-\,}}\left({\mathtt{7}}\right){\mathtt{\,-\,}}{\mathtt{2}} = -{\mathtt{9}}$$

Boom!  Who needs schooling now????

Just to be sure I wasn't saying you were wrong happy7 just noting that people do make mistakes.

I know!!!!!!!!!!!

it is -5 i hope this works

$${\mathtt{\,-\,}}{\mathtt{7}}{\mathtt{\,-\,}}{\mathtt{2}} = -{\mathtt{9}}$$

It's not 5 or 9 it's -9 

Like I said

Yep you were right.

Nice try wolf