-3z-9=-42

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Solution for -3z-9=-42 equation: 



-3z-9=-42

We move all terms to the left:

-3z-9-(-42)=0

We add all the numbers together, and all the variables

-3z+33=0

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

-3z=-33

z=-33/-3

z=+11

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