Move −45 to left: We have the equation 39=−6z−45. Our goal is to isolate z. First, we will move −45 to the left side of the equation by adding 45 to both sides.Calculation: 39+45=−6z−45+4584=−6z
Add 45 to both sides: Now that we have 84=−6z, we need to isolate z by dividing both sides of the equation by −6.Calculation: −684=−6−6z−14=z