84=7(4+x)

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Solution for 84=7(4+x) equation: 



84=7(4+x)

We move all terms to the left:

84-(7(4+x))=0

We add all the numbers together, and all the variables

-(7(x+4))+84=0



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

7(x+4)

We multiply parentheses

7x+28

Back to the equation:

-(7x+28)



We get rid of parentheses

-7x-28+84=0

We add all the numbers together, and all the variables

-7x+56=0

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

-7x=-56

x=-56/-7

x=+8

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