6-12z+7z-15=3z+7

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Solution for 6-12z+7z-15=3z+7 equation: 



6-12z+7z-15=3z+7

We move all terms to the left:

6-12z+7z-15-(3z+7)=0

We add all the numbers together, and all the variables

-5z-(3z+7)-9=0

We get rid of parentheses

-5z-3z-7-9=0

We add all the numbers together, and all the variables

-8z-16=0

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

-8z=16

z=16/-8

z=-2

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