Use the properties to subtract (h+k)-(2k-h)
To subtract (h+k)-(2k-h), we distribute the negative sign to the second set of parentheses:
(h + k) - (2k - h)
= h + k - 2k + h
Now, we can combine like terms:
(h + h) + (k - 2k)
= 2h + (-k)
= 2h - k