7x+21+5x=12x-20

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Solution for 7x+21+5x=12x-20 equation: 



7x+21+5x=12x-20

We move all terms to the left:

7x+21+5x-(12x-20)=0

We add all the numbers together, and all the variables

12x-(12x-20)+21=0

We get rid of parentheses

12x-12x+20+21=0

We add all the numbers together, and all the variables

41!=0

There is no solution for this equation

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