81=4+7(5x+1)

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Solution for 81=4+7(5x+1) equation: 



81=4+7(5x+1)

We move all terms to the left:

81-(4+7(5x+1))=0



We calculate terms in parentheses: -(4+7(5x+1)), so:

4+7(5x+1)

determiningTheFunctionDomain
7(5x+1)+4

We multiply parentheses

35x+7+4

We add all the numbers together, and all the variables

35x+11

Back to the equation:

-(35x+11)



We get rid of parentheses

-35x-11+81=0

We add all the numbers together, and all the variables

-35x+70=0

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

-35x=-70

x=-70/-35

x=+2

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