Answer:
4
Explanation:
Need to know #, and solve :
#
is the same as
#you need the same denominator to be able to add or subtract fractions
#
is the same as
#
is the same as a*d = b*c
6 ( 2*s - 4) = 3 ( s+4)
# distribute multiplication over addition and subtraction
12s-24 = 3s+12
#isolate like terms
12s-3s = 12+24
#combine like terms
9s = 36
#divide both sides by 9
s= 4