1=-2(7+z)-9

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Solution for 1=-2(7+z)-9 equation: 



1=-2(7+z)-9

We move all terms to the left:

1-(-2(7+z)-9)=0

We add all the numbers together, and all the variables

-(-2(z+7)-9)+1=0



We calculate terms in parentheses: -(-2(z+7)-9), so:

-2(z+7)-9

We multiply parentheses

-2z-14-9

We add all the numbers together, and all the variables

-2z-23

Back to the equation:

-(-2z-23)



We get rid of parentheses

2z+23+1=0

We add all the numbers together, and all the variables

2z+24=0

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

2z=-24

z=-24/2

z=-12

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