21x-4=20x+2

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Solution for 21x-4=20x+2 equation: 



21x-4=20x+2

We move all terms to the left:

21x-4-(20x+2)=0

We get rid of parentheses

21x-20x-2-4=0

We add all the numbers together, and all the variables

x-6=0

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

x=6

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