9+9z=-45

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Solution for 9+9z=-45 equation: 



9+9z=-45

We move all terms to the left:

9+9z-(-45)=0

We add all the numbers together, and all the variables

9z+54=0

We move all terms containing z to the left, all other terms to the right

9z=-54

z=-54/9

z=-6

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