12z+8=13+9z-4z

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Solution for 12z+8=13+9z-4z equation: 



12z+8=13+9z-4z

We move all terms to the left:

12z+8-(13+9z-4z)=0

We add all the numbers together, and all the variables

12z-(5z+13)+8=0

We get rid of parentheses

12z-5z-13+8=0

We add all the numbers together, and all the variables

7z-5=0

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

7z=5

z=5/7

z=5/7

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