84=7x+2(3x+3)

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Solution for 84=7x+2(3x+3) equation: 



84=7x+2(3x+3)

We move all terms to the left:

84-(7x+2(3x+3))=0



We calculate terms in parentheses: -(7x+2(3x+3)), so:

7x+2(3x+3)

We multiply parentheses

7x+6x+6

We add all the numbers together, and all the variables

13x+6

Back to the equation:

-(13x+6)



We get rid of parentheses

-13x-6+84=0

We add all the numbers together, and all the variables

-13x+78=0

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

-13x=-78

x=-78/-13

x=+6

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