7x+2x+1=9x+1

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Solution for 7x+2x+1=9x+1 equation: 



7x+2x+1=9x+1

We move all terms to the left:

7x+2x+1-(9x+1)=0

We add all the numbers together, and all the variables

9x-(9x+1)+1=0

We get rid of parentheses

9x-9x-1+1=0

We add all the numbers together, and all the variables

=0

x=0/1

x=0

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