x=2(x-400,000)

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Solution for x=2(x-400,000) equation: 



x=2(x-400.000)

We move all terms to the left:

x-(2(x-400.000))=0

We add all the numbers together, and all the variables

x-(2(x-400))=0



We calculate terms in parentheses: -(2(x-400)), so:

2(x-400)

We multiply parentheses

2x-800

Back to the equation:

-(2x-800)



We get rid of parentheses

x-2x+800=0

We add all the numbers together, and all the variables

-1x+800=0

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

-x=-800

x=-800/-1

x=+800

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