-5
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-12-(+10)=-22. Negative 22 is the final answer
-20
The expression "negative 8 minus 7" can be simplified as -8 - 7. To subtract a positive number from a negative number, you can add the opposite. Therefore, -8 - 7 is the same as -8 + (-7), which equals -15.
You would subtract. For example, if you have 5-7, you would subtract the two like normal. And if you have 5+(-7) you would also subtract, because adding a negative number to a positive is the same as subtracting.
A negative... as in (-5) + (-7) = (-12). A negative timesa negative is a positive... as in (-5) X (-7) = (+35)