81=-5+2(7-6x)

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Solution for 81=-5+2(7-6x) equation: 



81=-5+2(7-6x)

We move all terms to the left:

81-(-5+2(7-6x))=0

We add all the numbers together, and all the variables

-(-5+2(-6x+7))+81=0



We calculate terms in parentheses: -(-5+2(-6x+7)), so:

-5+2(-6x+7)

determiningTheFunctionDomain
2(-6x+7)-5

We multiply parentheses

-12x+14-5

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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