4=8-3b+b

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Solution for 4=8-3b+b equation: 



4=8-3b+b

We move all terms to the left:

4-(8-3b+b)=0

We add all the numbers together, and all the variables

-(-2b+8)+4=0

We get rid of parentheses

2b-8+4=0

We add all the numbers together, and all the variables

2b-4=0

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

2b=4

b=4/2

b=2

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