Answer :

First, distribute 8

8s+24=72

Now, isolate the variable with inverse operations

subtract 24 from both sides

8s=48

Divide by 8 on both sides

s=6
Distribute 8
So it will be

8s + 24 = 72
Subtract 24 on both sides

8s=48

48/8 = 6

Answer is 6