81=-7-8(x-3)

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Solution for 81=-7-8(x-3) equation: 



81=-7-8(x-3)

We move all terms to the left:

81-(-7-8(x-3))=0



We calculate terms in parentheses: -(-7-8(x-3)), so:

-7-8(x-3)

determiningTheFunctionDomain
-8(x-3)-7

We multiply parentheses

-8x+24-7

We add all the numbers together, and all the variables

-8x+17

Back to the equation:

-(-8x+17)



We get rid of parentheses

8x-17+81=0

We add all the numbers together, and all the variables

8x+64=0

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

8x=-64

x=-64/8

x=-8

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