Work Step by Step
We can plug in $z=-8$ to the equation to see if it is a solution. $2z-1=2(-8)-1=2\times-8-1=-16-1=-17\ne-15$ Therefore, $z=-8$ is not a solution to the given equation.
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.