30-5b=20

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Solution for 30-5b=20 equation: 



30-5b=20

We move all terms to the left:

30-5b-(20)=0

We add all the numbers together, and all the variables

-5b+10=0

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

-5b=-10

b=-10/-5

b=+2

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