9=-2(x-7)-9

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Solution for 9=-2(x-7)-9 equation: 



9=-2(x-7)-9

We move all terms to the left:

9-(-2(x-7)-9)=0



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

-2(x-7)-9

We multiply parentheses

-2x+14-9

We add all the numbers together, and all the variables

-2x+5

Back to the equation:

-(-2x+5)



We get rid of parentheses

2x-5+9=0

We add all the numbers together, and all the variables

2x+4=0

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

2x=-4

x=-4/2

x=-2

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