8=b+12

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Solution for 8=b+12 equation: 



8=b+12

We move all terms to the left:

8-(b+12)=0

We get rid of parentheses

-b-12+8=0

We add all the numbers together, and all the variables

-1b-4=0

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

-b=4

b=4/-1

b=-4

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