7x-7=9x-9

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



7x-7=9x-9

We move all terms to the left:

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

We get rid of parentheses

7x-9x+9-7=0

We add all the numbers together, and all the variables

-2x+2=0

We move all terms containing x to the left, all other terms to the right

-2x=-2

x=-2/-2

x=1

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