-8 - (-13) = - 8 + 13 = +5
( minus a minus is a plus)
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8 minus negative three or 8--3 equal positive 11. The double negative converts the minus sign into a plus sign and the negative into a positive.
4
-6, or negative six.
Since 8 does not equal 13 - 4the equation (8 = 13 - 4) is false and so (8 = 13 - 4) = 0
-16 - 8 = -24