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How can we subtract two positive or negative integers?
Solution:
Subtracting two positive integers
$ a - b$ where a and b are any two integers such that $a > b$
Example:
$5 - 3 = 2$
$a - b$ where a and b are any two integers such that $b > a$
$3 - 5 = -2$
Subtracting two negative integers
$ (-a) - (-b)$ where a and b are any two positive integers such that $a > b$
Example
$ (-5) - (-3) = -5 + 3 = -2$
$(-a) - (-b)$ where a and b are any two positive integers such that $b > a$
$ (-3) - (-5) = -3 + 5 = +2$
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