20+3b=10b-1

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Solution for 20+3b=10b-1 equation: 



20+3b=10b-1

We move all terms to the left:

20+3b-(10b-1)=0

We get rid of parentheses

3b-10b+1+20=0

We add all the numbers together, and all the variables

-7b+21=0

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

-7b=-21

b=-21/-7

b=+3

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