X-3x=7

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Solution for X-3x=7 equation: 



X-3X=7

We move all terms to the left:

X-3X-(7)=0

We add all the numbers together, and all the variables

-2X-7=0

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

-2X=7

X=7/-2

X=-3+1/2

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