-1-2(-7k+5)=-81

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Solution for -1-2(-7k+5)=-81 equation: 



-1-2(-7k+5)=-81

We move all terms to the left:

-1-2(-7k+5)-(-81)=0

We add all the numbers together, and all the variables

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

We multiply 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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