-30=-4+2(z+8)

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Solution for -30=-4+2(z+8) equation: 



-30=-4+2(z+8)

We move all terms to the left:

-30-(-4+2(z+8))=0



We calculate terms in parentheses: -(-4+2(z+8)), so:

-4+2(z+8)

determiningTheFunctionDomain
2(z+8)-4

We multiply parentheses

2z+16-4

We add all the numbers together, and all the variables

2z+12

Back to the equation:

-(2z+12)



We get rid of parentheses

-2z-12-30=0

We add all the numbers together, and all the variables

-2z-42=0

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

-2z=42

z=42/-2

z=-21

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