-257=-9(6m-8)-5

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Solution for -257=-9(6m-8)-5 equation: 



-257=-9(6m-8)-5

We move all terms to the left:

-257-(-9(6m-8)-5)=0



We calculate terms in parentheses: -(-9(6m-8)-5), so:

-9(6m-8)-5

We multiply parentheses

-54m+72-5

We add all the numbers together, and all the variables

-54m+67

Back to the equation:

-(-54m+67)



We get rid of parentheses

54m-67-257=0

We add all the numbers together, and all the variables

54m-324=0

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

54m=324

m=324/54

m=6

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