9x+7=9x+12

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



9x+7=9x+12

We move all terms to the left:

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

We get rid of parentheses

9x-9x-12+7=0

We add all the numbers together, and all the variables

-5!=0

There is no solution for this equation

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