7b-1=3.8-21

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Solution for 7b-1=3.8-21 equation: 



7b-1=3.8-21

We move all terms to the left:

7b-1-(3.8-21)=0

We add all the numbers together, and all the variables

7b-1-(-17.2)=0

We add all the numbers together, and all the variables

7b+16.2=0

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

7b=-16.2

b=-16.2/7

b=-2+2.2/7

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