21b+7=5(b+1)

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Solution for 21b+7=5(b+1) equation: 



21b+7=5(b+1)

We move all terms to the left:

21b+7-(5(b+1))=0



We calculate terms in parentheses: -(5(b+1)), so:

5(b+1)

We multiply parentheses

5b+5

Back to the equation:

-(5b+5)



We get rid of parentheses

21b-5b-5+7=0

We add all the numbers together, and all the variables

16b+2=0

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

16b=-2

b=-2/16

b=-1/8

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