-7f=-9-7f

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



-7f=-9-7f

We move all terms to the left:

-7f-(-9-7f)=0

We add all the numbers together, and all the variables

-7f-(-7f-9)=0

We get rid of parentheses

-7f+7f+9=0

We add all the numbers together, and all the variables

9!=0

There is no solution for this equation

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