a negative number plus a negative number is negative. here is a proof.
(-x)+(-x)
(-1)x+(-1)x
-1(x+x)
-1(2x)
-2x
a negative number times a negative number is positive though.
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Negative answer if the negative number is bigger. Positive answer if the positive number is bigger.
Because "minus a negative" is tha same as "plus a positive". So, a positive minus a negative is a positive plus a positive which is a positive.
1 plus negative 10 is equal to -9.
its negative 4........
negative 4