30=-(-2-2z)

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Solution for 30=-(-2-2z) equation: 



30=-(-2-2z)

We move all terms to the left:

30-(-(-2-2z))=0

We add all the numbers together, and all the variables

-(-(-2z-2))+30=0



We calculate terms in parentheses: -(-(-2z-2)), so:

-(-2z-2)

We get rid of parentheses

2z+2

Back to the equation:

-(2z+2)



We get rid of parentheses

-2z-2+30=0

We add all the numbers together, and all the variables

-2z+28=0

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

-2z=-28

z=-28/-2

z=+14

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