-4+5(-4k+5)=121

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Solution for -4+5(-4k+5)=121 equation: 



-4+5(-4k+5)=121

We move all terms to the left:

-4+5(-4k+5)-(121)=0

We add all the numbers together, and all the variables

5(-4k+5)-125=0

We multiply parentheses

-20k+25-125=0

We add all the numbers together, and all the variables

-20k-100=0

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

-20k=100

k=100/-20

k=-5

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