-210=-7(7k-5)

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Solution for -210=-7(7k-5) equation: 



-210=-7(7k-5)

We move all terms to the left:

-210-(-7(7k-5))=0



We calculate terms in parentheses: -(-7(7k-5)), so:

-7(7k-5)

We multiply parentheses

-49k+35

Back to the equation:

-(-49k+35)



We get rid of parentheses

49k-35-210=0

We add all the numbers together, and all the variables

49k-245=0

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

49k=245

k=245/49

k=5

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