Answer:
the simplified expression is (a^2 - b^2) / 3ab.
Explanation:
To find -2+3b, we simply substitute the value of b into the expression. If we don't have a specific value for b, we can leave it as it is.
-2 + 3b
To simplify a/3b - b/3a, we need to find a common denominator for the fractions. The common denominator for 3b and 3a is 3ab.
a/3b - b/3a
Now, we can multiply the first fraction by a/a and the second fraction by b/b to obtain a common denominator.
(a * a) / (3b * a) - (b * b) / (3a * b)
This simplifies to:
a^2 / 3ab - b^2 / 3ab
Since the fractions have the same denominator, we can combine them:
(a^2 - b^2) / 3ab