Question 1020550
Hi there,
if 4 is added to one half of a number 
the result is 15 less than that same number.
Make x the number
4 + x/2 = x - 15
Collect like terms
x - x/2 = 15 + 4
x/2 = 19
Cross multiply
x = 38
The number is 38.
Hope this helps :-)