For this case we have the following equation:
5x / 6x + 3
The denominator of the equation must be different from zero.
Therefore, we have:
6x + 3 = 0
From here, we clear x:
6x = -3
x = -3/6
x = -1/2
Answer:
the nonpermissible replacement for the variable in this expression is:
B.-1/2