2-2b=20

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Solution for 2-2b=20 equation: 



2-2b=20

We move all terms to the left:

2-2b-(20)=0

We add all the numbers together, and all the variables

-2b-18=0

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

-2b=18

b=18/-2

b=-9

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