81=(2x+1)+6x

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Solution for 81=(2x+1)+6x equation: 



81=(2x+1)+6x

We move all terms to the left:

81-((2x+1)+6x)=0



We calculate terms in parentheses: -((2x+1)+6x), so:

(2x+1)+6x

We add all the numbers together, and all the variables

6x+(2x+1)

We get rid of parentheses

6x+2x+1

We add all the numbers together, and all the variables

8x+1

Back to the equation:

-(8x+1)



We get rid of parentheses

-8x-1+81=0

We add all the numbers together, and all the variables

-8x+80=0

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

-8x=-80

x=-80/-8

x=+10

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