21x-7=21x-70

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Solution for 21x-7=21x-70 equation: 



21x-7=21x-70

We move all terms to the left:

21x-7-(21x-70)=0

We get rid of parentheses

21x-21x+70-7=0

We add all the numbers together, and all the variables

63!=0

There is no solution for this equation

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