20+3b=13+7b

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Solution for 20+3b=13+7b equation: 



20+3b=13+7b

We move all terms to the left:

20+3b-(13+7b)=0

We add all the numbers together, and all the variables

3b-(7b+13)+20=0

We get rid of parentheses

3b-7b-13+20=0

We add all the numbers together, and all the variables

-4b+7=0

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

-4b=-7

b=-7/-4

b=1+3/4

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