3=19-2b

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Solution for 3=19-2b equation: 



3=19-2b

We move all terms to the left:

3-(19-2b)=0

We add all the numbers together, and all the variables

-(-2b+19)+3=0

We get rid of parentheses

2b-19+3=0

We add all the numbers together, and all the variables

2b-16=0

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

2b=16

b=16/2

b=8

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