-5 - 12 = -17, by subtracting carefully (or going down a number line).
However, there is an easier way, by factoring out -1. Thus, we have -(5 + 12) = -(17) = -17.
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Positive 3 plus negative 5 minus negative 2 minus positive 4 is equal to -4.
Positive minus a negative = positive plus a positive two negatives make a positive 3- (-1) = 3 + 1 = 4 5- (-7) = 12
A negative number minus a positive number equals a minus number( E.G -5 - [+]5 = -10)A negative number minus a negative number equals a positive number ( If the number's big enough)(E.G -5 - -5 = 0 )Hope this helps :)
it is negative 5
It depends. (a) a positive minus a smaller positive is positive, (b) a positive minus a positive of the same size is zero, and (c) a positive minus a bigger positive is negative. For example, (a) 8 - 6 = 2 (b) 8 - 8 = 0 (c) 8 - 11 = -3