66-(3x+9)=3(x+5)+x

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Solution for 66-(3x+9)=3(x+5)+x equation: 



66-(3x+9)=3(x+5)+x

We move all terms to the left:

66-(3x+9)-(3(x+5)+x)=0

We get rid of parentheses

-3x-(3(x+5)+x)-9+66=0



We calculate terms in parentheses: -(3(x+5)+x), so:

3(x+5)+x

We add all the numbers together, and all the variables

x+3(x+5)

We multiply parentheses

x+3x+15

We add all the numbers together, and all the variables

4x+15

Back to the equation:

-(4x+15)



We add all the numbers together, and all the variables

-3x-(4x+15)+57=0

We get rid of parentheses

-3x-4x-15+57=0

We add all the numbers together, and all the variables

-7x+42=0

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

-7x=-42

x=-42/-7

x=+6

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