Question

$- ( - 4 + 6 - 7) + (10 - 6 - 5) - ( - 1 - 4 + 6$
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Answer 1

-(-4+6-7)+(10-6-5)-(-1-4+6)
-(+6-11)+(10-11)-(-5+6)
-(-5)+(-1)-(1)
5-1-1
5-2
3