-85=-2(5+6b)-3

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Solution for -85=-2(5+6b)-3 equation: 



-85=-2(5+6b)-3

We move all terms to the left:

-85-(-2(5+6b)-3)=0

We add all the numbers together, and all the variables

-(-2(6b+5)-3)-85=0



We calculate terms in parentheses: -(-2(6b+5)-3), so:

-2(6b+5)-3

We multiply parentheses

-12b-10-3

We add all the numbers together, and all the variables

-12b-13

Back to the equation:

-(-12b-13)



We get rid of parentheses

12b+13-85=0

We add all the numbers together, and all the variables

12b-72=0

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

12b=72

b=72/12

b=6

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