0
Anonymous
10 + 7 + 3 = 20
Wiki User
-7
(-10) + (7) = -3
-13
3
(3 - 4) + (7 - 10) = -1 + -3 = -4
7
7+3+10 = 20
-7 plus 10 is the same as 10 minus 7, which is 3.
-7 + 10 = +3
17
-3
20