Twice means taht we have to multiply by 2.
The difference means a subtraction between 2 numbers; in this case the difference of -4 and x is:
-4-x
twice that difference is = 2(-4-x)
Greater than is represented with the symbol > , always pointing to the greater number.
The reciprocal of a number is 1 divided by that number.
Reciprocal of -2= -1/2
So, the final expression is:
2(-4-x) > -1/2