### Instruction: What is the value of $x$ for which $|3x+5|$ is not positive? Express your answer as a common fraction.### Response: An absolute value is not positive when it is equal to zero.
So we solve $|3x+5|=0$.
$|3x+5|=0$ means that $3x+5=0$.
Solving for $x$ we get $x=-5/3$.