7b-30=20

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Solution for 7b-30=20 equation: 



7b-30=20

We move all terms to the left:

7b-30-(20)=0

We add all the numbers together, and all the variables

7b-50=0

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

7b=50

b=50/7

b=7+1/7

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