x-9x=4

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Solution for x-9x=4 equation: 



x-9x=4

We move all terms to the left:

x-9x-(4)=0

We add all the numbers together, and all the variables

-8x-4=0

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

-8x=4

x=4/-8

x=-1/2

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