3b-+7=-20

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



3b-+7=-20

We move all terms to the left:

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

We add all the numbers together, and all the variables

3b-13=0

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

3b=13

b=13/3

b=4+1/3

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