84+1x=3x

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Solution for 84+1x=3x equation: 



84+1x=3x

We move all terms to the left:

84+1x-(3x)=0

We add all the numbers together, and all the variables

-2x+84=0

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

-2x=-84

x=-84/-2

x=+42

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