2z-7+7z=-(4z+8)

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Solution for 2z-7+7z=-(4z+8) equation: 



2z-7+7z=-(4z+8)

We move all terms to the left:

2z-7+7z-(-(4z+8))=0

We add all the numbers together, and all the variables

9z-(-(4z+8))-7=0



We calculate terms in parentheses: -(-(4z+8)), so:

-(4z+8)

We get rid of parentheses

-4z-8

Back to the equation:

-(-4z-8)



We get rid of parentheses

9z+4z+8-7=0

We add all the numbers together, and all the variables

13z+1=0

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

13z=-1

z=-1/13

z=-1/13

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