81=-6-3(4x-5)

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Solution for 81=-6-3(4x-5) equation: 



81=-6-3(4x-5)

We move all terms to the left:

81-(-6-3(4x-5))=0



We calculate terms in parentheses: -(-6-3(4x-5)), so:

-6-3(4x-5)

determiningTheFunctionDomain
-3(4x-5)-6

We multiply parentheses

-12x+15-6

We add all the numbers together, and all the variables

-12x+9

Back to the equation:

-(-12x+9)



We get rid of parentheses

12x-9+81=0

We add all the numbers together, and all the variables

12x+72=0

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

12x=-72

x=-72/12

x=-6

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