-2(4+5k)+7(7k-4)=-75

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Solution for -2(4+5k)+7(7k-4)=-75 equation: 



-2(4+5k)+7(7k-4)=-75

We move all terms to the left:

-2(4+5k)+7(7k-4)-(-75)=0

We add all the numbers together, and all the variables

-2(5k+4)+7(7k-4)-(-75)=0

We add all the numbers together, and all the variables

-2(5k+4)+7(7k-4)+75=0

We multiply parentheses

-10k+49k-8-28+75=0

We add all the numbers together, and all the variables

39k+39=0

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

39k=-39

k=-39/39

k=-1

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