200=850(1-d)

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Solution for 200=850(1-d) equation: 



200=850(1-d)

We move all terms to the left:

200-(850(1-d))=0

We add all the numbers together, and all the variables

-(850(-1d+1))+200=0



We calculate terms in parentheses: -(850(-1d+1)), so:

850(-1d+1)

We multiply parentheses

-850d+850

Back to the equation:

-(-850d+850)



We get rid of parentheses

850d-850+200=0

We add all the numbers together, and all the variables

850d-650=0

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

850d=650

d=650/850

d=13/17

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