Answer: D
Explanation:
If you would like me to explain just ask.
30.16 = 17.56 + (-5x) You need to get the -5x by itself so subtract 17.56 from 17.56 and subtract it from 30.16.
12.60 = -5x You need to get the x by itself now so divide -5 by -5 and 12.60 by -5.
then you get...
-2.52 = x