7(1-8x)=399

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Solution for 7(1-8x)=399 equation: 



7(1-8x)=399

We move all terms to the left:

7(1-8x)-(399)=0

We add all the numbers together, and all the variables

7(-8x+1)-399=0

We multiply parentheses

-56x+7-399=0

We add all the numbers together, and all the variables

-56x-392=0

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

-56x=392

x=392/-56

x=-7

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