84=7x+4x+7

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



84=7x+4x+7

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(11x+7)+84=0

We get rid of parentheses

-11x-7+84=0

We add all the numbers together, and all the variables

-11x+77=0

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

-11x=-77

x=-77/-11

x=+7

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