Question 542493
The Sum of a number and four is equal to the difference between sixteen and twice the number.

The sum of a number and four in equation form is.  X+4

Equal to the difference between sixteen and twice the number in equation form is.  2X-16

so in order to solve this problem you must subtract 4 from 16 and multiply the solution by 2

so your work should look like this

16-4=12
12*2=24
24+4-16=X
So X=12