7x+12=7x+9

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Solution for 7x+12=7x+9 equation: 



7x+12=7x+9

We move all terms to the left:

7x+12-(7x+9)=0

We get rid of parentheses

7x-7x-9+12=0

We add all the numbers together, and all the variables

3!=0

There is no solution for this equation

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