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2 answers:
(+)(-) → (-)
(+)(+) → (+)
(-)(-) → (+)
4 + (-2) - (-3) - 6 = 4 - 2 + 3 - 6 = 2 + 3 - 6 = 5 - 6 = -1
4+(-2) -(-3) -6
first of all we distribute the signs inside to simplify it for the first step
negative times positive = negative
and
negative times negative = positive
=4 -2 +3 -6
Now we can combine using PEMDAS rule
= 7 - 8
= -1
So the answer is -1
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