84=7x+28

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Solution for 84=7x+28 equation: 



84=7x+28

We move all terms to the left:

84-(7x+28)=0

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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