7+x=9+x-2

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



7+x=9+x-2

We move all terms to the left:

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

We add all the numbers together, and all the variables

x-(x+7)+7=0

We get rid of parentheses

x-x-7+7=0

We add all the numbers together, and all the variables

=0

x=0/1

x=0

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