131=7b+12

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Solution for 131=7b+12 equation: 



131=7b+12

We move all terms to the left:

131-(7b+12)=0

We get rid of parentheses

-7b-12+131=0

We add all the numbers together, and all the variables

-7b+119=0

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

-7b=-119

b=-119/-7

b=+17

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