13z-(7+7z)+(3z+9)=30,8

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Solution for 13z-(7+7z)+(3z+9)=30,8 equation: 



13z-(7+7z)+(3z+9)=30.8

We move all terms to the left:

13z-(7+7z)+(3z+9)-(30.8)=0

We add all the numbers together, and all the variables

13z-(7z+7)+(3z+9)-(30.8)=0

We add all the numbers together, and all the variables

13z-(7z+7)+(3z+9)-30.8=0

We get rid of parentheses

13z-7z+3z-7+9-30.8=0

We add all the numbers together, and all the variables

9z-28.8=0

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

9z=28.8

z=28.8/9

z=3+1/5

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