2=-2(z-9)+2

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



2=-2(z-9)+2

We move all terms to the left:

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



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

-2(z-9)+2

We multiply parentheses

-2z+18+2

We add all the numbers together, and all the variables

-2z+20

Back to the equation:

-(-2z+20)



We get rid of parentheses

2z-20+2=0

We add all the numbers together, and all the variables

2z-18=0

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

2z=18

z=18/2

z=9

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