16+9z=-20

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Solution for 16+9z=-20 equation: 



16+9z=-20

We move all terms to the left:

16+9z-(-20)=0

We add all the numbers together, and all the variables

9z+36=0

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

9z=-36

z=-36/9

z=-4

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