30+21x=21x-12

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Solution for 30+21x=21x-12 equation: 



30+21x=21x-12

We move all terms to the left:

30+21x-(21x-12)=0

We get rid of parentheses

21x-21x+12+30=0

We add all the numbers together, and all the variables

42!=0

There is no solution for this equation

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