3*4+8=b

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Solution for 3*4+8=b equation: 



3*4+8=b

We move all terms to the left:

3*4+8-(b)=0

We add all the numbers together, and all the variables

-1b+20=0

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

-b=-20

b=-20/-1

b=+20

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