78=9b-3

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Solution for 78=9b-3 equation: 



78=9b-3

We move all terms to the left:

78-(9b-3)=0

We get rid of parentheses

-9b+3+78=0

We add all the numbers together, and all the variables

-9b+81=0

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

-9b=-81

b=-81/-9

b=+9

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