I was trying to figure out this:
2/3S - (S - 1/3) = 1/2 - (S - 1/2) -1/3
(Sorry if the transcribing is wrong)
All the numbers that are written like this are fractions: a/b
What do I do with the brackets? I can't just remove them can I?
It says S=.5 but I can't figure out how to work it out.
I'm assuming that this is
(2/3)S - (S - 1/3) = 1/2 - (S - 1/2) -1/3 simplify
(2/3)S - S + 1/3 = 1/2 - S + 1/2 - 1/3 add S to both sides
(2/3)S + 1/3 = 1/2 + 1/2 - 1/3
(2/3)S + 1/3 = 1 - 1/3
(2/3)S + 1/3 = 2/3 subtract 1/3 from each side
(2/3) S = 1/3 multiply both sides by 3/2
S = (1/3)(3/2) = 3/6 = 1/2
I'm assuming that this is
(2/3)S - (S - 1/3) = 1/2 - (S - 1/2) -1/3 simplify
(2/3)S - S + 1/3 = 1/2 - S + 1/2 - 1/3 add S to both sides
(2/3)S + 1/3 = 1/2 + 1/2 - 1/3
(2/3)S + 1/3 = 1 - 1/3
(2/3)S + 1/3 = 2/3 subtract 1/3 from each side
(2/3) S = 1/3 multiply both sides by 3/2
S = (1/3)(3/2) = 3/6 = 1/2