21x+27=42x+20

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Solution for 21x+27=42x+20 equation: 



21x+27=42x+20

We move all terms to the left:

21x+27-(42x+20)=0

We get rid of parentheses

21x-42x-20+27=0

We add all the numbers together, and all the variables

-21x+7=0

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

-21x=-7

x=-7/-21

x=1/3

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