#1**+2 **

(-2) - (-7) = 5

Think of it as you having a 2$ debt, then you get rid of a 7$ debt. Sorry for bad english, btw why don't you just use the calculator for that problem?

Cavallin Oct 24, 2017

#2**+2 **

To add on to Cavallin ^^^

Theres also this thing called the double negative rule where if you have

(-2) - (-7) If you take away the parenthesis you see two negative symbols right next to each other

If ever you see that -2 - -7 the double negative turns into a positive so your new problem would be

-2 +7 = 5

MicahSmith07 Oct 24, 2017