145-6b=8b+-2(7+-9b)

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Solution for 145-6b=8b+-2(7+-9b) equation: 



145-6b=8b+-2(7+-9b)

We move all terms to the left:

145-6b-(8b+-2(7+-9b))=0

We add all the numbers together, and all the variables

-6b-(8b+-2(-9b))+145=0

We use the square of the difference formula

-6b-(8b-2(-9b))+145=0



We calculate terms in parentheses: -(8b-2(-9b)), so:

8b-2(-9b)

We multiply parentheses

8b+18b

We add all the numbers together, and all the variables

26b

Back to the equation:

-(26b)



We add all the numbers together, and all the variables

-32b+145=0

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

-32b=-145

b=-145/-32

b=4+17/32

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