-3b-39=-78

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Solution for -3b-39=-78 equation: 



-3b-39=-78

We move all terms to the left:

-3b-39-(-78)=0

We add all the numbers together, and all the variables

-3b+39=0

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

-3b=-39

b=-39/-3

b=+13

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