-7x+9=-7x-11

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Solution for -7x+9=-7x-11 equation: 



-7x+9=-7x-11

We move all terms to the left:

-7x+9-(-7x-11)=0

We get rid of parentheses

-7x+7x+11+9=0

We add all the numbers together, and all the variables

20!=0

There is no solution for this equation

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