9-z=-9-10z

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Solution for 9-z=-9-10z equation: 



9-z=-9-10z

We move all terms to the left:

9-z-(-9-10z)=0

We add all the numbers together, and all the variables

-z-(-10z-9)+9=0

We add all the numbers together, and all the variables

-1z-(-10z-9)+9=0

We get rid of parentheses

-1z+10z+9+9=0

We add all the numbers together, and all the variables

9z+18=0

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

9z=-18

z=-18/9

z=-2

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