81-(6x+12)=6(x+5)+x

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Solution for 81-(6x+12)=6(x+5)+x equation: 



81-(6x+12)=6(x+5)+x

We move all terms to the left:

81-(6x+12)-(6(x+5)+x)=0

We get rid of parentheses

-6x-(6(x+5)+x)-12+81=0



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

6(x+5)+x

We add all the numbers together, and all the variables

x+6(x+5)

We multiply parentheses

x+6x+30

We add all the numbers together, and all the variables

7x+30

Back to the equation:

-(7x+30)



We add all the numbers together, and all the variables

-6x-(7x+30)+69=0

We get rid of parentheses

-6x-7x-30+69=0

We add all the numbers together, and all the variables

-13x+39=0

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

-13x=-39

x=-39/-13

x=+3

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