equivalent to subtracting a negative
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Adding a negative amount is equivalent to subtracting a positive amount.
Subtracting its additive inverse. (In principle, this is valid for adding positive numbers as well.)
Subtracting a negative is the same as adding the equivalent positive. For example, subtracting minus 10 is the same as adding 10.
Subtracting a negative fraction is the same as adding its positive equivalent.
Adding a negative number is equivalent to subtracting a positive number. For example, adding -3 is the same as subtracting 3. Subtracting a negative number is equivalent to adding a positive number. For example, subtracting -3 is the same as adding 3. The rule to remember is that when you have a negative sign in front of a number, it actually changes its sign.