19 minus 6 equals 13.
6 - (-9) = 15 15 + 2 = 17 17 - 4 = 13 is the answer.
6
7.15 minus 6.25 = 0.9
15
13/15.
6
6
c= 120
15+6 is 21. 13 + what is 21? 21 - 13 is 8 Eight
If you subtract 15 from -6 you get -21. If you worked out the problem on paper, this is what it would look like. -6 - 15 = ? (change the minus to a plus, and change the sign of 15 from positive to negative) -6 + -15 = ? ( now you can add negative 6 plus negative 15 which equals negative 21) -6 + -15 = -21
-6 - (-8) = 2