-3x+9x-25=-4

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Solution for -3x+9x-25=-4 equation: 



-3x+9x-25=-4

We move all terms to the left:

-3x+9x-25-(-4)=0

We add all the numbers together, and all the variables

6x-21=0

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

6x=21

x=21/6

x=3+1/2

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