63-21x=21x+9

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Solution for 63-21x=21x+9 equation: 



63-21x=21x+9

We move all terms to the left:

63-21x-(21x+9)=0

We get rid of parentheses

-21x-21x-9+63=0

We add all the numbers together, and all the variables

-42x+54=0

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

-42x=-54

x=-54/-42

x=1+2/7

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