-2(x-1)2-1=-9

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Solution for -2(x-1)2-1=-9 equation: 



-2(x-1)2-1=-9

We move all terms to the left:

-2(x-1)2-1-(-9)=0

We add all the numbers together, and all the variables

-2(x-1)2+8=0

We multiply parentheses

-4x+4+8=0

We add all the numbers together, and all the variables

-4x+12=0

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

-4x=-12

x=-12/-4

x=+3

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