6/7S - 3/4 = 4/5 - 1/7S + 1/6

Answer 1

6/7S - 3/4 = 4/5 - 1/7S + 1/6
(6/7)s + (1/7)s = 4/5 + 1/6 + 3/4
s = 48/60 + 10/60 + 45/60
s = 103/60

Answer 2

Thanks so much Reiny!