If you mean subtracting a negative number from another negative, then you simply add the second negative to the first number.
For example: -3 - (-4)=1
-3 + 4 = 1
The double negative makes the equation an addition.
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it is equal to +x
Same mathematical signs equal plus Different mathematical signs equal minus Plus Plus = Plus (+)(+) = + Minus Minus = Plus (-)(-) = + Plus Minus = Minus (+)(-) = - Minus Plus = Minus (-)(+) = - So the direct answer to your question would be: plus minus equals minus
-1 multiplied by -1 is 1
-5
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