21x=12x+83

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Solution for 21x=12x+83 equation: 



21x=12x+83

We move all terms to the left:

21x-(12x+83)=0

We get rid of parentheses

21x-12x-83=0

We add all the numbers together, and all the variables

9x-83=0

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

9x=83

x=83/9

x=9+2/9

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