Answer: b=5/6
You want to get b on one side and the fractions on the other. First you should subtract b from both sides giving you 2b-b-4/3=-3/6. Then you add 4/3 to both sides. That gives you 2b-b=-3/6+4/3. Combine like terms. Subtract b from 2b. Find the least common denominator for the fraction side which would be 6. This makes the equation b=-3/6+8/6. Add the fractions and you get b=5/6