Subtract
Subtraction is the operation of deducting one number from another; the inverse of
addition.
If a and b are real numbers,
then the number a-b is the number (called the difference) which when added to b (the
subtractor) equals a (the subtrahend).
So, the subtraction of b from a is the same as the addition of a and the inverse of
b, or a-b=a+(-b).
[RA]
{EB}
{EP}
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