-230=7k+4(-5+7k)

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Solution for -230=7k+4(-5+7k) equation: 



-230=7k+4(-5+7k)

We move all terms to the left:

-230-(7k+4(-5+7k))=0

We add all the numbers together, and all the variables

-(7k+4(7k-5))-230=0



We calculate terms in parentheses: -(7k+4(7k-5)), so:

7k+4(7k-5)

We multiply parentheses

7k+28k-20

We add all the numbers together, and all the variables

35k-20

Back to the equation:

-(35k-20)



We get rid of parentheses

-35k+20-230=0

We add all the numbers together, and all the variables

-35k-210=0

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

-35k=210

k=210/-35

k=-6

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