20+8b=8b-2(b-7)

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Solution for 20+8b=8b-2(b-7) equation: 



20+8b=8b-2(b-7)

We move all terms to the left:

20+8b-(8b-2(b-7))=0



We calculate terms in parentheses: -(8b-2(b-7)), so:

8b-2(b-7)

We multiply parentheses

8b-2b+14

We add all the numbers together, and all the variables

6b+14

Back to the equation:

-(6b+14)



We get rid of parentheses

8b-6b-14+20=0

We add all the numbers together, and all the variables

2b+6=0

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

2b=-6

b=-6/2

b=-3

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