Find the non permissible replacement for the variable in this expression 5x/6x+3

-1/2

Step-by-step explanation:

The non permissible replacement of the variable in a certain expression is the value of x that will make the denominator of the expression zero. In this certain given,

6x + 3 ≠ 0

Solving for x,

x ≠ - 1/2

Thus, the answer is - 1/2.