Question

What is the solution of 74.6+c=82

Answer 1

The solution of your equation is c=7.4

This is because you would do like so:

74.6+c=82
-74.6 -74.6 SUBTRACT to isolate variable "c"
--------------------
c= 7.4

Answer 2

In order to get the answer, or the value of c, you need to subtract 74.6 from 82.0

82.0
-74.6