84=4*3x

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Solution for 84=4*3x equation: 



84=4*3x

We move all terms to the left:

84-(4*3x)=0

We add all the numbers together, and all the variables

-(+4*3x)+84=0

We get rid of parentheses

-4*3x+84=0

Wy multiply elements

-12x+84=0

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

-12x=-84

x=-84/-12

x=+7

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