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Anonymous
7 + (-11) = -4
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-7 = (-11 +x ) -7 -x = -11 x= 4
(-4) - (-7) - (11) = -4 + 7 - 11 = -8
Positive six: 6 or +6.
they are already even! 7 and 11 are the same as 7 plus 11. 7 plus 11 is 18! 18 is even!
It is: 11+(-8) = 3