-4x-9=-4x+12

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Solution for -4x-9=-4x+12 equation: 



-4x-9=-4x+12

We move all terms to the left:

-4x-9-(-4x+12)=0

We get rid of parentheses

-4x+4x-12-9=0

We add all the numbers together, and all the variables

-21!=0

There is no solution for this equation

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