3-9x=129

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Solution for 3-9x=129 equation: 



3-9x=129

We move all terms to the left:

3-9x-(129)=0

We add all the numbers together, and all the variables

-9x-126=0

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

-9x=126

x=126/-9

x=-14

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