Look at A, 7+-10= -3 and -13+17= 4, which one is bigger? 4, so yes A is correct. But look at the other answer choices.
B, 22+-13= 9, and 18+-7= 11; no, 9 isn't bigger that 11
C, -18+24= 6 and -23+17= -6, there aren't equal. 6 is bigger than -6
D, -11+-8= -19 and 4+-26= -22, -22 is bigger than -19 so it's not D either.