x+9=7x+9+6x

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Solution for x+9=7x+9+6x equation: 



x+9=7x+9+6x

We move all terms to the left:

x+9-(7x+9+6x)=0

We add all the numbers together, and all the variables

x-(13x+9)+9=0

We get rid of parentheses

x-13x-9+9=0

We add all the numbers together, and all the variables

-12x=0

x=0/-12

x=0

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