3=-8+b

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Solution for 3=-8+b equation: 



3=-8+b

We move all terms to the left:

3-(-8+b)=0

We add all the numbers together, and all the variables

-(b-8)+3=0

We get rid of parentheses

-b+8+3=0

We add all the numbers together, and all the variables

-1b+11=0

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

-b=-11

b=-11/-1

b=+11

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