210=-7(-2+7k)

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Solution for 210=-7(-2+7k) equation: 



210=-7(-2+7k)

We move all terms to the left:

210-(-7(-2+7k))=0

We add all the numbers together, and all the variables

-(-7(7k-2))+210=0



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

-7(7k-2)

We multiply parentheses

-49k+14

Back to the equation:

-(-49k+14)



We get rid of parentheses

49k-14+210=0

We add all the numbers together, and all the variables

49k+196=0

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

49k=-196

k=-196/49

k=-4

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