12+b-8=3=b=7

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Solution for 12+b-8=3=b=7 equation: 



12+b-8=3=b=7

We move all terms to the left:

12+b-8-(3)=0

We add all the numbers together, and all the variables

b+1=0

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

b=-1

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