Answer:
Step-by-step explanation:
Subtracting a number means the same as adding the opposite number.
(-)(-) = (+)
6 - (-4) - (-3)
opposite number to -4 is 4
opposite number to -3 is 3
6 - (-4) - (-3) = 6 + 4 + 3 = 13
the correct answer is 13.
