-80=-2(-7k+5)

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Solution for -80=-2(-7k+5) equation: 



-80=-2(-7k+5)

We move all terms to the left:

-80-(-2(-7k+5))=0



We calculate terms in parentheses: -(-2(-7k+5)), so:

-2(-7k+5)

We multiply parentheses

14k-10

Back to the equation:

-(14k-10)



We get rid of parentheses

-14k+10-80=0

We add all the numbers together, and all the variables

-14k-70=0

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

-14k=70

k=70/-14

k=-5

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