28=-2(z-9)+16

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Solution for 28=-2(z-9)+16 equation: 



28=-2(z-9)+16

We move all terms to the left:

28-(-2(z-9)+16)=0



We calculate terms in parentheses: -(-2(z-9)+16), so:

-2(z-9)+16

We multiply parentheses

-2z+18+16

We add all the numbers together, and all the variables

-2z+34

Back to the equation:

-(-2z+34)



We get rid of parentheses

2z-34+28=0

We add all the numbers together, and all the variables

2z-6=0

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

2z=6

z=6/2

z=3

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