3b + 14/3 = 4
3b = 4 - 14/3
Multiply 4 by 3/3 to get a fraction with
the same denominator.
3b = 12/3 - 14/3 = -2/3
3b = -2/3
3b / 3 = (-2/3) / 3
Dividing by a number is the same as
multiplying by its reciprocal. This makes
it easier to visualize.
b = (-2/3) * (1/3)
Multiply the numerators,
then multiply the denominators.
b = -2/9