7z+9=12

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Solution for 7z+9=12 equation: 



7z+9=12

We move all terms to the left:

7z+9-(12)=0

We add all the numbers together, and all the variables

7z-3=0

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

7z=3

z=3/7

z=3/7

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