21(b+538)=-378

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Solution for 21(b+538)=-378 equation: 



21(b+538)=-378

We move all terms to the left:

21(b+538)-(-378)=0

We add all the numbers together, and all the variables

21(b+538)+378=0

We multiply parentheses

21b+11298+378=0

We add all the numbers together, and all the variables

21b+11676=0

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

21b=-11676

b=-11676/21

b=-556

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