-144=-9(8+b)

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Solution for -144=-9(8+b) equation: 



-144=-9(8+b)

We move all terms to the left:

-144-(-9(8+b))=0

We add all the numbers together, and all the variables

-(-9(b+8))-144=0



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

-9(b+8)

We multiply parentheses

-9b-72

Back to the equation:

-(-9b-72)



We get rid of parentheses

9b+72-144=0

We add all the numbers together, and all the variables

9b-72=0

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

9b=72

b=72/9

b=8

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