2b-2.1=7.9

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Solution for 2b-2.1=7.9 equation: 



2b-2.1=7.9

We move all terms to the left:

2b-2.1-(7.9)=0

We add all the numbers together, and all the variables

2b-10=0

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

2b=10

b=10/2

b=5

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