-3(3+4k)=-57

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Solution for -3(3+4k)=-57 equation: 



-3(3+4k)=-57

We move all terms to the left:

-3(3+4k)-(-57)=0

We add all the numbers together, and all the variables

-3(4k+3)-(-57)=0

We add all the numbers together, and all the variables

-3(4k+3)+57=0

We multiply parentheses

-12k-9+57=0

We add all the numbers together, and all the variables

-12k+48=0

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

-12k=-48

k=-48/-12

k=+4

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