Weare given to complete a blank in the equation:
2 m - 3 - _____ + 17 = 14
So, we start by combining all the terms we can combine (the pure numerical terms that don't have the variable "m")
2 m - 3 + 17 - ______ = 14
2 m + 14 - _______ = 14
Now we subtract 14 from both sides of the equal sign:
2 m - ____ = 0
which means that the blank should be exactly "2m" such that subtracted from 2m gives a perfect zero.
Answer: complete the blank with "2 m"